Revert "Revert "msm: timer: Use generic sched_clock interface""

This reverts commit 3365cbf5fa742f4bb11fbae59a5e151b63abead7.

CRs-Fixed: 308893
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>

Conflicts:

	arch/arm/Kconfig
	arch/arm/mach-msm/timer.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4111f91..5fbc034 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -631,6 +631,7 @@
 	select GENERIC_GPIO
 	select GENERIC_TIME
 	select GENERIC_ALLOCATOR
+	select HAVE_SCHED_CLOCK
 	help
 	  Support for Qualcomm MSM/QSD based systems.  This runs on the
 	  apps processor of the MSM/QSD and depends on a shared memory