msm: msm_mpmctr: add api to read sleep timetick count

Add an api to make the MPM sleep timetick count available;
print in kernel log to aid boot/reboot timing analysis.

Change-Id: I0943365d8b5f4fda3e021705df43846451ff0dbe
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
Signed-off-by: Joel King <joelking@codeaurora.org>
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index ecea32b..cb5e712 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -411,3 +411,5 @@
 
 obj-$(CONFIG_MSM_SMCMOD) += smcmod.o
 obj-$(CONFIG_MSM_CPU_PWRCTL) +=  msm_cpu_pwrctl.o
+
+obj-$(CONFIG_ARCH_MSM8974) += msm_mpmctr.o