fix scm.c to make properly with all tool versions

arch/arm/mach-msm/scm.c

@@ -173,7 +173,7 @@ static u32 smc(u32 cmd_addr)
 			__asmeq("%1", "r0")
 			__asmeq("%2", "r1")
 			__asmeq("%3", "r2")
-			"smc	#0	@ switch to secure world\n"
+			".arch_extension sec\n smc	#0	@ switch to secure world\n"
 			: "=r" (r0)
 			: "r" (r0), "r" (r1), "r" (r2)
 			: "r3");
@@ -294,7 +294,7 @@ s32 scm_call_atomic1(u32 svc, u32 cmd, u32 arg1)
 		__asmeq("%1", "r0")
 		__asmeq("%2", "r1")
 		__asmeq("%3", "r2")
-		"smc	#0	@ switch to secure world\n"
+		".arch_extension sec\n smc	#0	@ switch to secure world\n"
 		: "=r" (r0)
 		: "r" (r0), "r" (r1), "r" (r2)
 		: "r3");
@@ -326,7 +326,7 @@ s32 scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2)
 		__asmeq("%2", "r1")
 		__asmeq("%3", "r2")
 		__asmeq("%4", "r3")
-		"smc	#0	@ switch to secure world\n"
+		".arch_extension sec\n smc	#0	@ switch to secure world\n"
 		: "=r" (r0)
 		: "r" (r0), "r" (r1), "r" (r2), "r" (r3));
 	return r0;
@@ -353,7 +353,7 @@ s32 scm_call_atomic4_3(u32 svc, u32 cmd, u32 arg1, u32 arg2,
 		__asmeq("%4", "r1")
 		__asmeq("%5", "r2")
 		__asmeq("%6", "r3")
-		"smc	#0	@ switch to secure world\n"
+		".arch_extension sec\n smc	#0	@ switch to secure world\n"
 		: "=r" (r0), "=r" (r1), "=r" (r2)
 		: "r" (r0), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5));
 	ret = r0;
@@ -385,7 +385,7 @@ u32 scm_get_version(void)
 			__asmeq("%1", "r1")
 			__asmeq("%2", "r0")
 			__asmeq("%3", "r1")
-			"smc	#0	@ switch to secure world\n"
+			".arch_extension sec\n smc	#0	@ switch to secure world\n"
 			: "=r" (r0), "=r" (r1)
 			: "r" (r0), "r" (r1)
 			: "r2", "r3");