feat(mt8188): add IOMMU enable control in SiP service

Add SiP service for multimedia & infra master to enable/disable
MM & INFRA IOMMU in secure world

TEST=build pass
BUG=b:236339614

Signed-off-by: Chengci Xu <chengci.xu@mediatek.corp-partner.google.com>
Change-Id: I4eb1fda6044cf2cb6c22c005cb2fa550906b71e9
diff --git a/plat/mediatek/include/mtk_sip_def.h b/plat/mediatek/include/mtk_sip_def.h
index 37734ea..d760101 100644
--- a/plat/mediatek/include/mtk_sip_def.h
+++ b/plat/mediatek/include/mtk_sip_def.h
@@ -11,6 +11,7 @@
 #define MTK_SIP_SMC_FROM_NS_EL1_TABLE(_func) \
 	_func(MTK_SIP_KERNEL_TIME_SYNC, 0x202) \
 	_func(MTK_SIP_VCORE_CONTROL, 0x506) \
+	_func(MTK_SIP_IOMMU_CONTROL, 0x514) \
 	_func(MTK_SIP_APUSYS_CONTROL, 0x51E) \
 	_func(MTK_SIP_DP_CONTROL, 0x523) \
 	_func(MTK_SIP_KERNEL_GIC_OP, 0x526)