SAM4E-EK:  NSH configuration now has DMA-based SPI and AT25 Serial FLASH suported enabled by default

SAM4E: Fix EMAC pin configuration.  Driver is basically functionaly now.  SAM4E-EK NSH configuration now has networking enabled by default

The old lm/ directories were enamed tiva/ to better support new products coming down the pipe from TI

configs/olimex-lpc2378/src:  Files renamed to correspond with current thinking about naming; defconfigs refreshed

configs/pic32-starterkit, pic32mx7mmb, stm3210e-eval, stm3220g-eval, and stm3240g-eval:  Refresh all configurations with the latest Kconfig files

Refresh several defconfig files to (1) bring them up-to-date, and (2) to confirm that no bugs were introduced in recent massive Kconfig file changes

Support for the older, manual configurations has been completely removed from the NuttX build system

configs/rgmp/x86/cxxtest: Configuration converted to use the kconfig-frontends tools.  This completes the conversion of all configurations to the newer format