Squashed commit of the following:
configs/: Add . = ALIGN(4); before every .data section
configs/: Add . = ALIGN(4); before every ARM.extab section
configs/: Add . = ALIGN(4); before every definition of __exidx_start
configs/: Add . = ALIGN(4); before every .init_section.
configs/: Convert TABs to spaces in all ld linker scripts. This just makes things easier to modify with scripts because the files are more consistent.
arch/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
sched/ audio/ crypto/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
Documentation/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
fs/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
graphics/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
net/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
drivers/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
include/, syscall/, wireless/: Removed all references to CONFIG_DISABLE_POLL. The standard POSIX poll() can not longer be disabled.
configs/: Remove all references to CONFIG_DISABLE_POLL. Standard POSIX poll can no longer be disabled.
Initial OTG support for STM32H7 and some minor improvements
arch/arm/src/stm32h7/stm32h7x3xx_rcc.c: add support for HSI48 clock
configs/nucleo-f207zg: add support for USB and initialize CDCACM if configured
configs/nucleo-h743zi: add support for USB and initialize CDCACM if configured
drivers/usbdev/Kconfig: fix type for USBDEV_TRACE_INITIALIDSET
configs/teensy-3.x/usbnsh/defconfig: update config according to change in USBDEV_TRACE_INITIALIDSET
Approved-by: Gregory Nutt <gnutt@nuttx.org>
sched/init/nx_start.c: Add support for CONFIG_BOARD_DRIVER_INITIALIZE. If this option is selected then nx_start() will call a board-provided function board_driver_initialize() immediately after calling up_initialize().
Rename CONFIG_BOARD_INITIALIZE to CONFIG_BOARD_LATE_INITIALIZE.
Raname board_initialize() to board_late_initialize()
configs/nucleo-f207zg, configs/nucleo-f103rb: add ADC and PWM examples; arch/arm/src/stm32_adc.c: there is no DMA CFG bit for the basic IPv1 ADC
Approved-by: GregoryN <gnutt@nuttx.org>
