ARM: OMAP2+: omap2plus_defconfig: enable omap1 rtc

The BeagleBone dev kit uses the built-in RTC module, so
it would be nice to have this built by default in the
omap2plus defconfig.

Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 8220055..76938cb 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -223,6 +223,7 @@
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_TWL92330=y
 CONFIG_RTC_DRV_TWL4030=y
+CONFIG_RTC_DRV_OMAP=y
 CONFIG_DMADEVICES=y
 CONFIG_DMA_OMAP=y
 CONFIG_EXT2_FS=y