refactor(mediatek): partition MTK SiP SMC ID

Manage MTK SiP SMC ID with macros for 32/64 bit and
function declaration code generation.
Partition SMC ID with different exception level sources.

Change-Id: I8966cd94f0d825e7ebae08833d2bd9fceedfd45e
diff --git a/plat/mediatek/mt8186/plat_sip_calls.c b/plat/mediatek/mt8186/plat_sip_calls.c
index cb66218..d9144d8 100644
--- a/plat/mediatek/mt8186/plat_sip_calls.c
+++ b/plat/mediatek/mt8186/plat_sip_calls.c
@@ -23,8 +23,8 @@
 	uint64_t ret;
 
 	switch (smc_fid) {
-	case MTK_SIP_VCORE_CONTROL_ARCH32:
-	case MTK_SIP_VCORE_CONTROL_ARCH64:
+	case MTK_SIP_VCORE_CONTROL_AARCH32:
+	case MTK_SIP_VCORE_CONTROL_AARCH64:
 		ret = spm_vcorefs_args(x1, x2, x3, (uint64_t *)&x4);
 		SMC_RET2(handle, ret, x4);
 		break;