msm: smsm: change SMSM_A2_FORCE_SHUTDOWN to SMSM_USB_PLUG_UNPLUG

SMSM client requests the SMSM bit named SMSM_A2_FORCE_SHUTDOWN be
renamed to SMSM_USB_PLUG_UNPLUG to reflect their new usecase.

CRs-Fixed: 419359
Change-Id: Ibeecbea72d8415ebca727f7258cfd0b1e4dfea66
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
diff --git a/arch/arm/mach-msm/include/mach/msm_smsm.h b/arch/arm/mach-msm/include/mach/msm_smsm.h
index 44b52b6..c77c181 100644
--- a/arch/arm/mach-msm/include/mach/msm_smsm.h
+++ b/arch/arm/mach-msm/include/mach/msm_smsm.h
@@ -83,7 +83,7 @@
 #define SMSM_WKUP_REASON_TIMER	0x00000008
 #define SMSM_WKUP_REASON_ALARM	0x00000010
 #define SMSM_WKUP_REASON_RESET	0x00000020
-#define SMSM_A2_FORCE_SHUTDOWN 0x00002000
+#define SMSM_USB_PLUG_UNPLUG    0x00002000
 #define SMSM_A2_RESET_BAM      0x00004000
 
 #define SMSM_VENDOR             0x00020000