memprotect: Move files to specific platform makefiles

All the arm platforms were including the files related to
mem-protect. This configuration generates some problems
with new platforms that don't support such functionality,
and for that reason this patch moves these files to the
platform specific makefiles.

Change-Id: I6923e5224668b76667795d8e11723cede7979b1e
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/plat/arm/board/common/board_common.mk b/plat/arm/board/common/board_common.mk
index d63ae9a..af47c0d 100644
--- a/plat/arm/board/common/board_common.mk
+++ b/plat/arm/board/common/board_common.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -12,13 +12,7 @@
 
 BL1_SOURCES		+=	plat/arm/board/common/drivers/norflash/norflash.c
 
-BL2_SOURCES		+=	lib/utils/mem_region.c					\
-				plat/arm/common/arm_nor_psci_mem_protect.c		\
-				plat/arm/board/common/drivers/norflash/norflash.c
-
-BL31_SOURCES		+=	lib/utils/mem_region.c					\
-				plat/arm/board/common/drivers/norflash/norflash.c	\
-				plat/arm/common/arm_nor_psci_mem_protect.c
+BL2_SOURCES		+=	plat/arm/board/common/drivers/norflash/norflash.c
 
 ifneq (${TRUSTED_BOARD_BOOT},0)
   ifneq (${ARM_CRYPTOCELL_INTEG}, 1)