Keystone SOC updates for 3.15
- Enable Watchdog and GPIO config
- Enable LED driver config
- Enable NAND and EMIF driver config
* tag 'keystone-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
ARM: config: keystone: enable AEMIF/NAND support
ARM: config: keystone: enable led support
ARM: config: keystone: enable gpio support
ARM: config: keystone: enable watchdog support