usb: msm_otg: Migrate to clock apis for XO voting

Use the clock APIs instead of the msm_xo APIs to vote on CXO.
This removes one more msm specific api from this driver and will
allow us to move XO control into the rpm clock driver.

Change-Id: Ie9344aad20651002e98f13cd3adb39680fbd93bd
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-9615.c b/arch/arm/mach-msm/clock-9615.c
index a8ecd90..98d9cb2 100644
--- a/arch/arm/mach-msm/clock-9615.c
+++ b/arch/arm/mach-msm/clock-9615.c
@@ -1598,7 +1598,7 @@
 };
 
 static struct clk_lookup msm_clocks_9615[] = {
-	CLK_LOOKUP("cxo",	cxo_clk.c,	NULL),
+	CLK_LOOKUP("xo",	cxo_clk.c,	"msm_otg"),
 	CLK_LOOKUP("pll0",	pll0_clk.c,	NULL),
 	CLK_LOOKUP("pll8",	pll8_clk.c,	NULL),
 	CLK_LOOKUP("pll14",	pll14_clk.c,	NULL),