plat/sgi: increase number of xlat tables

With the recent updates, the SGI based platforms require a higher number
of xlat tables. So update MAX_XLAT_TABLES macro accordingly.

Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
Change-Id: I0d2b16a6ceffc09a37b7f67ad519c28648dc0383
diff --git a/plat/arm/sgi/common/include/sgi_base_platform_def.h b/plat/arm/sgi/common/include/sgi_base_platform_def.h
index 10d1841..04673b3 100644
--- a/plat/arm/sgi/common/include/sgi_base_platform_def.h
+++ b/plat/arm/sgi/common/include/sgi_base_platform_def.h
@@ -80,7 +80,7 @@
 #define PLAT_LOCAL_PSTATE_WIDTH		4
 
 /* Platform specific page table and MMU setup constants */
-#define MAX_XLAT_TABLES			5
+#define MAX_XLAT_TABLES			6
 #define MAX_MMAP_REGIONS		16
 
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