xlat_tables_v2: fix assembler warning of PLAT_RO_XLAT_TABLES

If PLAT_RO_XLAT_TABLES is defined, the base xlat table goes to the
.rodata section instead of .bss section.

This causes a warning like:

/tmp/ccswitLr.s: Assembler messages:
/tmp/ccswitLr.s:297: Warning: setting incorrect section attributes for .rodata

It is practically no problem, but I want to keep the build log clean.

Put the base table into the "base_xlat_table" section to suppress the
assembler warnings.

The linker script determines its final destination; rodata section if
PLAT_RO_XLAT_TABLES=1, or bss section otherwise. So, the result is the
same.

Change-Id: Ic85d1d2dddd9b5339289fc2378cbcb21dd7db02e
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/lib/xlat_tables_v2/xlat_tables_context.c b/lib/xlat_tables_v2/xlat_tables_context.c
index 032e142..95dae88 100644
--- a/lib/xlat_tables_v2/xlat_tables_context.c
+++ b/lib/xlat_tables_v2/xlat_tables_context.c
@@ -25,15 +25,8 @@
  * Allocate and initialise the default translation context for the BL image
  * currently executing.
  */
-#if PLAT_RO_XLAT_TABLES
-#define BASE_XLAT_TABLE_SECTION		".rodata"
-#else
-#define BASE_XLAT_TABLE_SECTION		".bss"
-#endif
-
 REGISTER_XLAT_CONTEXT(tf, MAX_MMAP_REGIONS, MAX_XLAT_TABLES,
-		      PLAT_VIRT_ADDR_SPACE_SIZE, PLAT_PHY_ADDR_SPACE_SIZE,
-		      BASE_XLAT_TABLE_SECTION);
+		      PLAT_VIRT_ADDR_SPACE_SIZE, PLAT_PHY_ADDR_SPACE_SIZE);
 
 void mmap_add_region(unsigned long long base_pa, uintptr_t base_va, size_t size,
 		     unsigned int attr)