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/lib/cdev/CDev.cpp

@@ -41,7 +41,7 @@
 
 #include <cstring>
 
-#include <px4_posix.h>
+#include <px4_platform_common/posix.h>
 #include <drivers/drv_device.h>
 
 namespace cdev

src/lib/cdev/CDev.hpp

@@ -40,8 +40,8 @@
 #ifndef _CDEV_HPP
 #define _CDEV_HPP
 
-#include <px4_config.h>
-#include <px4_posix.h>
+#include <px4_platform_common/px4_config.h>
+#include <px4_platform_common/posix.h>
 
 #ifdef __PX4_NUTTX
 #include "nuttx/cdev_platform.hpp"

src/lib/cdev/nuttx/cdev_platform.cpp

@@ -39,7 +39,7 @@
 #include "cdev_platform.hpp"
 #include "../CDev.hpp"
 
-#include "px4_posix.h"
+#include <px4_platform_common/posix.h>
 #include "drivers/drv_device.h"
 #include <sys/ioctl.h>
 

src/lib/cdev/nuttx/cdev_platform.hpp

@@ -5,7 +5,7 @@
 
 #include <nuttx/arch.h>
 
-#include <px4_micro_hal.h>
+#include <px4_platform_common/micro_hal.h>
 
 #define ATOMIC_ENTER irqstate_t flags = px4_enter_critical_section()
 #define ATOMIC_LEAVE px4_leave_critical_section(flags)

src/lib/cdev/posix/cdev_platform.cpp

@@ -40,9 +40,9 @@
 #include "vfile.h"
 #include "../CDev.hpp"
 
-#include <px4_log.h>
-#include <px4_posix.h>
-#include <px4_time.h>
+#include <px4_platform_common/log.h>
+#include <px4_platform_common/posix.h>
+#include <px4_platform_common/time.h>
 
 #include "DevMgr.hpp"
 

src/lib/cdev/test/cdevtest_example.cpp

@@ -41,8 +41,8 @@
 
 #include "cdevtest_example.h"
 
-#include <px4_tasks.h>
-#include <px4_time.h>
+#include <px4_platform_common/tasks.h>
+#include <px4_platform_common/time.h>
 #include <drivers/drv_device.h>
 #include <lib/cdev/CDev.hpp>
 #include <unistd.h>

src/lib/cdev/test/cdevtest_example.h

@@ -39,7 +39,7 @@
  */
 #pragma once
 
-#include <px4_app.h>
+#include <px4_platform_common/app.h>
 
 class CDevNode;
 

src/lib/cdev/test/cdevtest_main.cpp

@@ -39,8 +39,8 @@
  */
 #include "cdevtest_example.h"
 
-#include <px4_app.h>
-#include <px4_init.h>
+#include <px4_platform_common/app.h>
+#include <px4_platform_common/init.h>
 #include <stdio.h>
 
 int PX4_MAIN(int argc, char **argv)

src/lib/cdev/test/cdevtest_start.cpp

@@ -39,8 +39,8 @@
  */
 #include "cdevtest_example.h"
 
-#include <px4_app.h>
-#include <px4_tasks.h>
+#include <px4_platform_common/app.h>
+#include <px4_platform_common/tasks.h>
 #include <stdio.h>
 #include <string.h>