msm: pm-boot: Common API to configure warmboot address

Common API to configure warmboot address during power collapse across
multiple msm platforms.

Change-Id: I64cff7feeca830f75b3873198262bd6f9f818f90
Signed-off-by: Maheshkumar Sivasubramanian <msivasub@codeaurora.org>
diff --git a/arch/arm/mach-msm/idle.h b/arch/arm/mach-msm/idle.h
index 740ef91..138db45 100644
--- a/arch/arm/mach-msm/idle.h
+++ b/arch/arm/mach-msm/idle.h
@@ -17,6 +17,7 @@
 int msm_arch_idle(void);
 int msm_pm_collapse(void);
 void msm_pm_collapse_exit(void);
+void msm_warmboot_entry(void);
 
 #ifdef CONFIG_CPU_V7
 void msm_pm_boot_entry(void);