Migrate platform ports to the new xlat_tables library

This patch modifies the upstream platform port makefiles to use the new
xlat_tables library files. This patch also makes mmap region setup common
between AArch64 and AArch32 for FVP platform port. The file `fvp_common.c`
is moved from the `plat/arm/board/fvp/aarch64` folder to the parent folder
as it is not specific to AArch64.

Change-Id: Id2e9aac45e46227b6f83cccfd1e915404018ea0b
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index afd939d..60ebe65 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -73,7 +73,7 @@
 PLAT_INCLUDES		:=	-Iplat/arm/board/fvp/include
 
 
-PLAT_BL_COMMON_SOURCES	:=	plat/arm/board/fvp/aarch64/fvp_common.c
+PLAT_BL_COMMON_SOURCES	:=	plat/arm/board/fvp/fvp_common.c
 
 FVP_CPU_LIBS		:=	lib/cpus/aarch64/aem_generic.S			\
 				lib/cpus/aarch64/cortex_a35.S			\