plat/arm: scpi: Move to drivers/ folder

Change-Id: Icc59cdaf2b56f6936e9847f1894594c671db2e94
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/plat/arm/css/common/css_common.mk b/plat/arm/css/common/css_common.mk
index 55303f1..36da732 100644
--- a/plat/arm/css/common/css_common.mk
+++ b/plat/arm/css/common/css_common.mk
@@ -27,8 +27,8 @@
 
 ifeq (${CSS_USE_SCMI_SDS_DRIVER},0)
 BL31_SOURCES		+=	drivers/arm/css/mhu/css_mhu.c			\
-				plat/arm/css/drivers/scp/css_pm_scpi.c		\
-				plat/arm/css/drivers/scpi/css_scpi.c
+				drivers/arm/css/scpi/css_scpi.c			\
+				plat/arm/css/drivers/scp/css_pm_scpi.c
 else
 BL31_SOURCES		+=	drivers/arm/css/mhu/css_mhu_doorbell.c		\
 				drivers/arm/css/scmi/scmi_ap_core_proto.c	\
@@ -55,13 +55,13 @@
     BL2_SOURCES		+=	plat/arm/css/drivers/scp/css_sds.c	\
 				plat/arm/css/drivers/sds/sds.c
   else
-    BL2U_SOURCES	+=	drivers/arm/css/mhu/css_mhu.c			\
-				plat/arm/css/drivers/scp/css_bom_bootloader.c	\
-				plat/arm/css/drivers/scpi/css_scpi.c
+    BL2U_SOURCES	+=	drivers/arm/css/mhu/css_mhu.c		\
+				drivers/arm/css/scpi/css_scpi.c		\
+				plat/arm/css/drivers/scp/css_bom_bootloader.c
 
-    BL2_SOURCES		+=	drivers/arm/css/mhu/css_mhu.c			\
-				plat/arm/css/drivers/scp/css_bom_bootloader.c	\
-				plat/arm/css/drivers/scpi/css_scpi.c
+    BL2_SOURCES		+=	drivers/arm/css/mhu/css_mhu.c		\
+				drivers/arm/css/scpi/css_scpi.c		\
+				plat/arm/css/drivers/scp/css_bom_bootloader.c
     # Enable option to detect whether the SCP ROM firmware in use predates version
     # 1.7.0 and therefore, is incompatible.
     CSS_DETECT_PRE_1_7_0_SCP	:=	1