plat/arm/sgi: update mmap and xlat count

A single chip platform requires five mmap entries and a corresponding
number of translation tables. For every additional chip in the system,
three additional mmap entries are required to map the shared SRAM and
the IO regions. A corresponding number of additional translation
tables are required as well.

Change-Id: I1332a1305f2af62181387cf36954f6fb0e6f11ed
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

plat/arm/css/sgi/include/sgi_base_platform_def.h

@@ -38,8 +38,8 @@
 #  define PLAT_SP_IMAGE_MMAP_REGIONS	7
 #  define PLAT_SP_IMAGE_MAX_XLAT_TABLES	10
 # else
-#  define PLAT_ARM_MMAP_ENTRIES		8
-#  define MAX_XLAT_TABLES		8
+#  define PLAT_ARM_MMAP_ENTRIES		(5 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
+#  define MAX_XLAT_TABLES		(5 + ((CSS_SGI_CHIP_COUNT - 1) * 3))
 # endif
 #elif defined(IMAGE_BL32)
 # define PLAT_ARM_MMAP_ENTRIES		8