src/platforms: move all headers to platforms/common/include/px4_platform_common

and remove the px4_ prefix, except for px4_config.h.

command to update includes:
for k in app.h atomic.h cli.h console_buffer.h defines.h getopt.h i2c.h init.h log.h micro_hal.h module.h module_params.h param.h param_macros.h posix.h sem.h sem.hpp shmem.h shutdown.h tasks.h time.h workqueue.h; do for i in $(grep -rl 'include <px4_'$k src platforms boards); do sed -i 's/#include <px4_'$k'/#include <px4_platform_common\/'$k/ $i; done; done
for in $(grep -rl 'include <px4_config.h' src platforms boards); do sed -i 's/#include <px4_config.h/#include <px4_platform_common\/px4_config.h'/ $i; done

Transitional headers for submodules are added (px4_{defines,log,time}.h)

src/modules/uORB/Publication.hpp

@@ -38,7 +38,7 @@
 
 #pragma once
 
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 #include <systemlib/err.h>
 #include <uORB/uORB.h>
 

src/modules/uORB/PublicationMulti.hpp

@@ -38,7 +38,7 @@
 
 #pragma once
 
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 #include <systemlib/err.h>
 #include <uORB/uORB.h>
 

src/modules/uORB/PublicationQueued.hpp

@@ -38,7 +38,7 @@
 
 #pragma once
 
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 #include <systemlib/err.h>
 #include <uORB/uORB.h>
 

src/modules/uORB/Subscription.cpp

@@ -37,7 +37,7 @@
  */
 
 #include "Subscription.hpp"
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 
 namespace uORB
 {

src/modules/uORB/Subscription.hpp

@@ -39,7 +39,7 @@
 #pragma once
 
 #include <uORB/uORB.h>
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 
 #include "uORBDeviceNode.hpp"
 #include "uORBManager.hpp"

src/modules/uORB/SubscriptionInterval.hpp

@@ -39,7 +39,7 @@
 #pragma once
 
 #include <uORB/uORB.h>
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 
 #include "uORBDeviceNode.hpp"
 #include "uORBManager.hpp"

src/modules/uORB/SubscriptionPollable.cpp

@@ -37,7 +37,7 @@
  */
 
 #include "SubscriptionPollable.hpp"
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 
 namespace uORB
 {

src/modules/uORB/SubscriptionPollable.hpp

@@ -41,7 +41,7 @@
 #include <uORB/uORB.h>
 #include <containers/List.hpp>
 #include <systemlib/err.h>
-#include <px4_defines.h>
+#include <px4_platform_common/defines.h>
 
 namespace uORB
 {

src/modules/uORB/uORBDeviceMaster.cpp

@@ -40,7 +40,7 @@
 #include "uORBCommunicator.hpp"
 #endif /* ORB_COMMUNICATOR */
 
-#include <px4_sem.hpp>
+#include <px4_platform_common/sem.hpp>
 #include <systemlib/px4_macros.h>
 
 uORB::DeviceMaster::DeviceMaster()

src/modules/uORB/uORBDeviceMaster.hpp

@@ -36,7 +36,7 @@
 #include <stdint.h>
 
 #include "uORBCommon.hpp"
-#include <px4_posix.h>
+#include <px4_platform_common/posix.h>
 
 namespace uORB
 {

src/modules/uORB/uORBMain.cpp

@@ -37,8 +37,8 @@
 #include "uORB.h"
 #include "uORBCommon.hpp"
 
-#include <px4_log.h>
-#include <px4_module.h>
+#include <px4_platform_common/log.h>
+#include <px4_platform_common/module.h>
 
 extern "C" { __EXPORT int uorb_main(int argc, char *argv[]); }
 

src/modules/uORB/uORBManager.cpp

@@ -36,9 +36,9 @@
 #include <stdarg.h>
 #include <fcntl.h>
 
-#include <px4_config.h>
-#include <px4_posix.h>
-#include <px4_tasks.h>
+#include <px4_platform_common/px4_config.h>
+#include <px4_platform_common/posix.h>
+#include <px4_platform_common/tasks.h>
 
 #include "uORBDeviceNode.hpp"
 #include "uORBUtils.hpp"

src/modules/uORB/uORB_tests/uORBTest_UnitTest.cpp

@@ -33,8 +33,8 @@
 
 #include "uORBTest_UnitTest.hpp"
 #include "../uORBCommon.hpp"
-#include <px4_config.h>
-#include <px4_time.h>
+#include <px4_platform_common/px4_config.h>
+#include <px4_platform_common/time.h>
 #include <stdio.h>
 #include <errno.h>
 #include <poll.h>

src/modules/uORB/uORB_tests/uORBTest_UnitTest.hpp

@@ -35,8 +35,8 @@
 #define _uORBTest_UnitTest_hpp_
 #include "../uORBCommon.hpp"
 #include "../uORB.h"
-#include <px4_time.h>
-#include <px4_tasks.h>
+#include <px4_platform_common/time.h>
+#include <px4_platform_common/tasks.h>
 #include <unistd.h>
 
 struct orb_test {