msm: 9615: Add xo voting support

1. Set CXO active and sleep set votes during init time
and invoke the xo driver from the 9615 board file.

2. Enable the msm_xo driver for 9615 in the msm Kconfig

Change-Id: I3286e6f12e73b6286593037157a1a91605df7ce0
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-9615.c b/arch/arm/mach-msm/board-9615.c
index 84a8a42..1f19bf6 100644
--- a/arch/arm/mach-msm/board-9615.c
+++ b/arch/arm/mach-msm/board-9615.c
@@ -31,6 +31,7 @@
 #include <mach/gpio.h>
 #include <mach/msm_spi.h>
 #include <mach/msm_bus_board.h>
+#include <mach/msm_xo.h>
 #include "timer.h"
 #include "devices.h"
 #include "board-9615.h"
@@ -568,6 +569,7 @@
 	msm9615_i2c_init();
 	regulator_suppress_info_printing();
 	platform_device_register(&msm9615_device_rpm_regulator);
+	msm_xo_init();
 	msm_clock_init(&msm9615_clock_init_data);
 	msm9615_init_buses();
 	msm9615_device_qup_spi_gsbi3.dev.platform_data =