DriverFramework purge

The bulk of this change was tightly coupled and needed to be deleted in one pass. Some of the smaller changes were things that broke as a result of the initial purge and subsequently fixed by further eradicating unnecessary platform differences. Finally, I deleted any dead code I came across in the related files I touched while going through everything.

 - DriverFramework (src/lib/DriverFramework submodule) completely removed
 - added dspal submodule in qurt platform (was brought in via DriverFramework)
 - all df wrapper drivers removed
 - all boards using df wrapper drivers updated to use in tree equivalents
 - unused empty arch/board.h on posix and qurt removed
 - unused IOCTLs removed (pub block, priv, etc)
 - Integrator delete methods only used from df wrapper drivers
 - commander: sensor calibration use "NuttX version" everywhere for now
 - sensors: update to px4_{open, read, close} instead of DevMgr wrapper (adc open for analog differential pressure)
 - battery_status: update to px4_{open, read, close} instead of DevMgr wrapper (adc open for analog differential pressure)
 - cdev cleanup conflicting typedefs and names with actual OS (pollevent_t, etc)
 - load_mon and top remove from linux boards (unused)
 - delete unused PX4_MAIN_FUNCTION
 - delete unused getreg32 macro
 - delete unused SIOCDEVPRIVATE define
 - named each platform tasks consistently
 - posix list_devices and list_topics removed (list_files now shows all virtual files)

src/drivers/magnetometer/ist8310/ist8310.cpp

@@ -874,9 +874,6 @@ IST8310::collect()
 	/* post a report to the ring */
 	_reports->force(&new_report);
 
-	/* notify anyone waiting for data */
-	poll_notify(POLLIN);
-
 	/*
 	  periodically check the range register and configuration
 	  registers. With a bad I2C cable it is possible for the

src/drivers/magnetometer/lis3mdl/lis3mdl_i2c.cpp

@@ -48,8 +48,6 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
-
 #include <drivers/device/i2c.h>
 #include <drivers/drv_mag.h>
 #include <drivers/drv_device.h>

src/drivers/magnetometer/lis3mdl/lis3mdl_spi.cpp

@@ -48,8 +48,6 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
-
 #include <drivers/device/spi.h>
 #include <drivers/drv_mag.h>
 #include <drivers/drv_device.h>

src/drivers/magnetometer/qmc5883/qmc5883_i2c.cpp

@@ -49,8 +49,6 @@
 #include <errno.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
-
 #include <drivers/device/i2c.h>
 #include <drivers/drv_mag.h>
 #include <drivers/drv_device.h>

src/drivers/magnetometer/qmc5883/qmc5883_spi.cpp

@@ -49,8 +49,6 @@
 #include <errno.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
-
 #include <drivers/device/spi.h>
 #include <drivers/drv_mag.h>
 #include <drivers/drv_device.h>

src/drivers/magnetometer/rm3100/rm3100_i2c.cpp

@@ -48,7 +48,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
+
 
 #include <drivers/device/i2c.h>
 #include <drivers/drv_mag.h>

src/drivers/magnetometer/rm3100/rm3100_spi.cpp

@@ -48,8 +48,6 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <arch/board/board.h>
-
 #include <drivers/device/spi.h>
 #include <drivers/drv_mag.h>
 #include <drivers/drv_device.h>