EFM32: Add IDLE power management hooks.  Nothing implemented; just define the hooks
Eliminate a warning
ARMv7: Add support to use ITM for SYSLOG debug output
Remove whitespace and and carriage returns
EFM32: Add logic to initialize and use ITM system
Update ChangeLog
Fix compile problems introduced when the syslog() prototype changed; Also update Makefile for kernel build
Update makefile for kernel-build issues
Update ChangeLog
Merge branch 'master' of http://git.code.sf.net/p/nuttx/git