feat(mediatek): move mtk_cirq.c drivers to cirq folder

To use cirq drivers more easier, we place mtk_cirq.c and mtk_cirq.h
to common/drivers/cirq.

We also rename mtk_cirq.c/h to mt_cirq.c/h for consistency with other
driver folders.

TEST=build pass for mt8192/mt8195/mt8186
BUG=b:236331724

Change-Id: I71bc442f00b16fb4031260937982c0496fcaaea0
diff --git a/plat/mediatek/mt8186/platform.mk b/plat/mediatek/mt8186/platform.mk
index 2d61403..0b3646a 100644
--- a/plat/mediatek/mt8186/platform.mk
+++ b/plat/mediatek/mt8186/platform.mk
@@ -8,6 +8,7 @@
 MTK_PLAT_SOC := ${MTK_PLAT}/${PLAT}
 
 PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
+                 -I${MTK_PLAT}/drivers/cirq/                      \
                  -I${MTK_PLAT}/drivers/gic600/                    \
                  -I${MTK_PLAT}/drivers/gpio/                      \
                  -I${MTK_PLAT}/drivers/lpm/                       \
@@ -47,7 +48,7 @@
                 ${MTK_PLAT}/common/mtk_plat_common.c                  \
                 ${MTK_PLAT}/common/mtk_sip_svc.c                      \
                 ${MTK_PLAT}/common/params_setup.c                     \
-                ${MTK_PLAT}/common/mtk_cirq.c                         \
+                ${MTK_PLAT}/drivers/cirq/mt_cirq.c                    \
                 ${MTK_PLAT}/drivers/gic600/mt_gic_v3.c                \
                 ${MTK_PLAT}/drivers/gpio/mtgpio_common.c              \
                 ${MTK_PLAT}/drivers/lpm/mt_lp_rm.c                    \