ARM: multi_v7_defconfig: Enable PBIAS regulator

PBIAS regulator is required for MMC module in OMAP2, OMAP3, OMAP4,
OMAP5 and DRA7 SoCs. Enable it here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 824a0cf..52ebbc5 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -411,6 +411,7 @@
 CONFIG_REGULATOR_MAX77686=y
 CONFIG_REGULATOR_MAX77693=m
 CONFIG_REGULATOR_PALMAS=y
+CONFIG_REGULATOR_PBIAS=y
 CONFIG_REGULATOR_PWM=m
 CONFIG_REGULATOR_S2MPS11=y
 CONFIG_REGULATOR_S5M8767=y