ARM: omap2plus_defconfig: Enable PWM_VIBRA

We can use PWM_VIBRA on many phones like droid 4.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -235,6 +235,7 @@ CONFIG_INPUT_CPCAP_PWRBUTTON=m
 CONFIG_INPUT_TPS65218_PWRBUTTON=m
 CONFIG_INPUT_TWL4030_PWRBUTTON=m
 CONFIG_INPUT_PALMAS_PWRBUTTON=m
+CONFIG_INPUT_PWM_VIBRA=m
 CONFIG_SERIO=m
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_8250=y