Re insetion of CONFIG_START_{YEAR|NONTH|DAY} is not needed as
   CONFIG_START_{YEAR|NONTH|DAY} have been defined always in
   upstream NuttX

   Latest uptake from upstream.

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

   Updated to match master
   This is needed when logger is logging to file and ulog streaming gets
   activated

    Bugfix for random SD card failures on px4fmu-v5 (STM32F7)

    Update to upstream with PX4 contrib for STM32F7 DMA preflight
    on SDMMC (SDIO) and DMA add dcache alignment check in
    stm32_dmacapable when needed: The case were dcache is in
    write-buffed mode.

   Updated to upstream with C++14 fix

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   was:CONFIG_SCHED_HPWORKPRIORITY=192
is:CONFIG_SCHED_HPWORKPRIORITY=249

   For historical reasons (NuttX STM32 numbering) PX4 bus numbering is
   1 based. All PX4 code, including, board code is written to assuming 1
   based numbering. In the PX4 I2C driver the 1 is subtracted from the
   buss number to address the freqency array.  These  macros are used to
   allow the board config to define the bus  numbers in terms of the NuttX
   driver numbering. 1,2,3 for one based numbering (STM32)  or 0,1,2
   for zero based (Kinetis)

   Latest upstream. With PX4 contrib for Wide Char fix.

   cwchar:Use CONFIG_LIBC_WCHAR to only export the wc/mb functions

       When a build does not want to use wide or multibyte char
       CONFIG_LIBC_WCHAR is not set. Therefore we should to only
       export the wc/mb functions when defined.

       Regardless of the stat of CONFIG_LIBC_WCHAR the non mb/wc
       definitions such as mbstate_t, wint_t, wctype_t need to be
       exported.

   Add FastRTPS