STM32F429-DISCO:  Move some board initialization logic that is not usuable because it lacks the configuration options to make it so

STM32F7 SDMMC: Make sure that all SDMMC configuration variables begin with STM32F7_; Eliminate CONFIG_SDMMC1/2_DMA altogether.  Does not appear to be used.

Timer logic: Add private function prototypes to eliminate a warning; Functions should not be inline because the may recurse.

STM32F103-Minimum:  Fix a compile error.  CONFIG_STM32_TICKLESS_ONESHOT_TIMER is only defined in TICKLESS mode.  Somebody has been hand editing .config files.

Merged in david_s5/nuttx-4/david_s5/stm32_sdioc-edited-online-with-bitbucket-1485885689555 (pull request #202)

stm32_sdio.c edited online with Bitbucket

CONFIG_SDIO_DMA: Was been defined in several low-level architecute Kconfig files, but used at the highest levels in the code.  Both are bad and both are fixed with this commit

Add capabilities() method to SDIO interface.  Remove CONFIG_SDIO_WIDTH_D1_ONLY.  That should not be a global propertie, but rather a capability/limitation of single slot when there may be multiple slots.

Typos withim mtd/ with Macronix MX25L.  In NuttX/drivers/mtd/Make.defs letters X between M and 25 are missing.  Noted by Oleg Evseev.

Module names are not needed in libc/modlib when the module library is used only for shared library support.

Move gnu-elf.ld from sched/module to libc/modlib. Update paths in Make.defs files to account for new location of file

Syscalls:  Remove modsym() syscall.  There is no reason why appication code could ever use symbolic information from a symbol within a kernel module.  The modsym() interface is only meaningful within the kernel.

Olimex STM32 P407: Add support for on-board microSD slot.  Does not work... Currently all commands to the SD card timeout.

Back out use on inline functions to access 16-bit registers.  The inline functions were a work-around for misbehaving compiler years and years ago.  The mon standard macro-ized version should work just fine.