msm: clock: Expose parts of "clock.h" through <mach/clk-provider.h>

Expose the features of "clock.h" outside of mach-msm so that new clock
drivers leveraging the framework in mach-msm/clock.c can be implemented
outside of the mach-msm sub-architecture directory.

Change-Id: I3d07017388b28d4e5b6e930e7eda4f48e840714b
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-pll.h b/arch/arm/mach-msm/clock-pll.h
index 30f595b..5c7c304 100644
--- a/arch/arm/mach-msm/clock-pll.h
+++ b/arch/arm/mach-msm/clock-pll.h
@@ -15,6 +15,8 @@
 #ifndef __ARCH_ARM_MACH_MSM_CLOCK_PLL_H
 #define __ARCH_ARM_MACH_MSM_CLOCK_PLL_H
 
+#include <mach/clk-provider.h>
+
 /**
  * enum - For PLL IDs
  */