msm: pmic: Add a separate config option for PMIC over RPC

MSMs in which the APPS does not have a direct access to
PMIC (over SSBI) use RPC to communicate with the PMIC.
Create a new config option for this RPC based PMIC driver
and enable it only for the required MSMs (7x27a, 7x30, fsm9xxx).

Change-Id: I668d9840581b8f1f2bdd80da6bdb9445ed560d32
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index c9b786c..6bd5f61 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -2607,4 +2607,13 @@
 	  can be read and written to send character data to the sysmon port of
 	  the modem over USB.
 
+config MSM_RPC_PMIC
+	tristate "MSM RPC PMIC driver"
+	depends on MSM_ONCRPCROUTER
+	help
+	 This driver supports the PMIC functionality over RPC for those MSM's
+	 which do not have a direct access to PMIC. It supports ability to
+	 configure MPP, GPIO and all the other supported peripherals of the
+	 PMIC.
+
 endif