LED control from kernel: started with vladnosferatu and invano implementation + control over on and off length and step1, 2, 3, 4 control
Linux 3.4.77

Conflicts:
	arch/arm/kernel/traps.c
	drivers/net/ethernet/broadcom/tg3.c
Fix up Linux 3.4.77 merge error
LEDs: Add bit shift option to give more control on led slope operation.  Also changed dutymax to 30 and dutymid to 15 to create a more even slope on slope up and slope down.
Merge remote-tracking branch 'upstream/tw4.3' into tw4.3