ARM: multi_v7_defconfig: enable TPS65217 regulator

Enable TPS65217 regulator to have rootfs in MMC for Beagle Bone's.
Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Afzal Mohammed <afzal.mohd.ma@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/configs/multi_v7_defconfig

@@ -433,6 +433,7 @@ CONFIG_MFD_SEC_CORE=y
 CONFIG_MFD_STMPE=y
 CONFIG_MFD_PALMAS=y
 CONFIG_MFD_TPS65090=y
+CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS6586X=y
 CONFIG_MFD_TPS65910=y
 CONFIG_REGULATOR_AB8500=y
@@ -463,6 +464,7 @@ CONFIG_REGULATOR_S5M8767=y
 CONFIG_REGULATOR_TPS51632=y
 CONFIG_REGULATOR_TPS62360=y
 CONFIG_REGULATOR_TPS65090=y
+CONFIG_REGULATOR_TPS65217=y
 CONFIG_REGULATOR_TPS6586X=y
 CONFIG_REGULATOR_TPS65910=y
 CONFIG_REGULATOR_TWL4030=y