feat(mediatek): move lpm drivers back to common

In order to sync drivers with MediaTek internal code base, we move lpm
drivers back to common folder.

Change-Id: I1066e092febe0abb9782a46f668613e137737c88
diff --git a/plat/mediatek/mt8195/platform.mk b/plat/mediatek/mt8195/platform.mk
index 414d655..80dfa53 100644
--- a/plat/mediatek/mt8195/platform.mk
+++ b/plat/mediatek/mt8195/platform.mk
@@ -8,11 +8,11 @@
 MTK_PLAT_SOC := ${MTK_PLAT}/${PLAT}
 
 PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
+                 -I${MTK_PLAT}/common/lpm/                        \
                  -I${MTK_PLAT}/drivers/cirq/                      \
                  -I${MTK_PLAT}/drivers/dp/                        \
                  -I${MTK_PLAT}/drivers/gic600/                    \
                  -I${MTK_PLAT}/drivers/gpio/                      \
-                 -I${MTK_PLAT}/drivers/lpm/                       \
                  -I${MTK_PLAT}/drivers/pmic/                      \
                  -I${MTK_PLAT}/drivers/pmic_wrap/                 \
                  -I${MTK_PLAT}/drivers/rtc/                       \
@@ -52,11 +52,11 @@
                 ${MTK_PLAT}/common/mtk_plat_common.c                  \
                 ${MTK_PLAT}/common/mtk_sip_svc.c                      \
                 ${MTK_PLAT}/common/params_setup.c                     \
+                ${MTK_PLAT}/common/lpm/mt_lp_rm.c                     \
                 ${MTK_PLAT}/drivers/cirq/mt_cirq.c                    \
                 ${MTK_PLAT}/drivers/dp/mt_dp.c                        \
                 ${MTK_PLAT}/drivers/gic600/mt_gic_v3.c                \
                 ${MTK_PLAT}/drivers/gpio/mtgpio_common.c              \
-                ${MTK_PLAT}/drivers/lpm/mt_lp_rm.c                    \
                 ${MTK_PLAT}/drivers/pmic/pmic.c                       \
                 ${MTK_PLAT}/drivers/pmic_wrap/pmic_wrap_init_v2.c     \
                 ${MTK_PLAT}/drivers/rtc/rtc_common.c                  \