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