Include `plat_psci_common.c` from the new location

The `plat_psci_common.c` was moved to the new location `plat/common`
and a stub file was retained at previous location for compatibility. This
patch modifies the platform makefiles to include the file from the new
location.

Change-Id: Iabddeeb824e9a5d72d176d7c644735966c8c0699

plat/arm/common/arm_common.mk

@@ -128,7 +128,7 @@ BL31_SOURCES		+=	plat/arm/common/arm_bl31_setup.c		\
 				plat/arm/common/arm_pm.c			\
 				plat/arm/common/arm_topology.c			\
 				plat/common/aarch64/platform_mp_stack.S		\
-				plat/common/aarch64/plat_psci_common.c
+				plat/common/plat_psci_common.c
 
 ifneq (${TRUSTED_BOARD_BOOT},0)
 

plat/compat/plat_compat.mk

 #
-# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -36,6 +36,6 @@ endif
 
 PLAT_BL_COMMON_SOURCES	+=	plat/compat/aarch64/plat_helpers_compat.S
 
-BL31_SOURCES		+=	plat/common/aarch64/plat_psci_common.c	\
+BL31_SOURCES		+=	plat/common/plat_psci_common.c		\
 				plat/compat/plat_pm_compat.c		\
 				plat/compat/plat_topology_compat.c

plat/nvidia/tegra/common/tegra_common.mk

 #
-# Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
@@ -52,7 +52,7 @@ BL31_SOURCES		+=	drivers/arm/gic/gic_v2.c			\
 				drivers/delay_timer/delay_timer.c		\
 				drivers/ti/uart/16550_console.S			\
 				plat/common/aarch64/platform_mp_stack.S		\
-				plat/common/aarch64/plat_psci_common.c		\
+				plat/common/plat_psci_common.c			\
 				${COMMON_DIR}/aarch64/tegra_helpers.S		\
 				${COMMON_DIR}/drivers/memctrl/memctrl.c		\
 				${COMMON_DIR}/drivers/pmc/pmc.c			\

plat/rockchip/rk3368/platform.mk

@@ -51,7 +51,7 @@ RK_GIC_SOURCES         :=	drivers/arm/gic/common/gic_common.c		\
 PLAT_BL_COMMON_SOURCES	:=	lib/xlat_tables/xlat_tables_common.c		\
 				lib/xlat_tables/aarch64/xlat_tables.c		\
 				plat/common/aarch64/plat_common.c		\
-				plat/common/aarch64/plat_psci_common.c
+				plat/common/plat_psci_common.c
 
 BL31_SOURCES		+=	${RK_GIC_SOURCES}				\
 				drivers/arm/cci/cci.c				\

plat/rockchip/rk3399/platform.mk

@@ -50,7 +50,7 @@ RK_GIC_SOURCES          :=      drivers/arm/gic/common/gic_common.c     \
 PLAT_BL_COMMON_SOURCES  :=	lib/xlat_tables/xlat_tables_common.c		\
 				lib/xlat_tables/aarch64/xlat_tables.c		\
                                 plat/common/aarch64/plat_common.c               \
-				plat/common/aarch64/plat_psci_common.c
+				plat/common/plat_psci_common.c
 
 BL31_SOURCES            +=      ${RK_GIC_SOURCES}                               \
                                 drivers/arm/cci/cci.c                           \

plat/xilinx/zynqmp/platform.mk

@@ -80,7 +80,7 @@ PLAT_BL_COMMON_SOURCES	:=	lib/xlat_tables/xlat_tables_common.c		\
 BL31_SOURCES		+=	drivers/arm/cci/cci.c				\
 				lib/cpus/aarch64/aem_generic.S			\
 				lib/cpus/aarch64/cortex_a53.S			\
-				plat/common/aarch64/plat_psci_common.c		\
+				plat/common/plat_psci_common.c			\
 				plat/common/aarch64/platform_mp_stack.S		\
 				plat/xilinx/zynqmp/bl31_zynqmp_setup.c		\
 				plat/xilinx/zynqmp/plat_psci.c			\