msm: defconfig-9615: Add Power Supply class

Power Supply APIs are required by USB driver for USB charging.
This change will not add an actual battery charger, but only
the Power Supply class and its APIs.

Change-Id: I69d6bec881ab0d42a707dc4b229fa01e1ce3e341
Signed-off-by: Amit Blay <ablay@codeaurora.org>
diff --git a/arch/arm/configs/msm9615_defconfig b/arch/arm/configs/msm9615_defconfig
index 0f403b5..949d276 100644
--- a/arch/arm/configs/msm9615_defconfig
+++ b/arch/arm/configs/msm9615_defconfig
@@ -167,6 +167,8 @@
 CONFIG_USB_G_ANDROID=y
 CONFIG_RMNET_SMD_CTL_CHANNEL="DATA36_CNTL"
 CONFIG_RMNET_SMD_DATA_CHANNEL="DATA36"
+CONFIG_POWER_SUPPLY=y
+# CONFIG_BATTERY_MSM is not set
 CONFIG_MMC=y
 CONFIG_MMC_PERF_PROFILING=y
 CONFIG_MMC_UNSAFE_RESUME=y