Move translation tables into separate section

This patch moves the translation tables into their own section. This
saves space that would otherwise have been lost in padding due to page
table alignment constraints. The BL31 and BL32 bases have been
consequently adjusted.

Change-Id: Ibd65ae8a5ce4c4ea9a71a794c95bbff40dc63e65
diff --git a/bl1/bl1.ld.S b/bl1/bl1.ld.S
index 48828e8..969b8c2 100644
--- a/bl1/bl1.ld.S
+++ b/bl1/bl1.ld.S
@@ -77,6 +77,15 @@
     } >RAM
 
     /*
+     * The .xlat_table section is for full, aligned page tables (4K).
+     * Removing them from .bss avoids forcing 4K alignment on
+     * the .bss section and eliminates the unecessary zero init
+     */
+    xlat_table (NOLOAD) : {
+        *(xlat_table)
+    } >RAM
+
+    /*
      * The base address of the coherent memory section must be page-aligned (4K)
      * to guarantee that the coherent data are stored on their own pages and
      * are not mixed with normal data.  This is required to set up the correct