ARM: omap4: tuna_defconfig: sync the config to latest

Change-Id: Ifbce6235d2d708150db57c80982f46bffe4bcc84
Signed-off-by: Dima Zavin <dima@android.com>
ARM: omap4: tuna_defconfig: enable TWL RTC

Change-Id: Icd0d762c159bd52e1adbf9766696cc7972f4b297
Signed-off-by: Dima Zavin <dima@android.com>