Use tf_printf() for debug logs from xlat_tables.c

The debug prints used to debug translation table setup in xlat_tables.c
used the `printf()` standard library function instead of the stack
optimized `tf_printf()` API. DEBUG_XLAT_TABLE option was used to enable
debug logs within xlat_tables.c and it configured a much larger stack
size for the platform in case it was enabled. This patch modifies these
debug prints within xlat_tables.c to use tf_printf() and modifies the format
specifiers to be compatible with tf_printf(). The debug prints are now enabled
if the VERBOSE prints are enabled in Trusted Firmware via LOG_LEVEL build
option.

The much larger stack size definition when DEBUG_XLAT_TABLE is defined
is no longer required and the platform ports are modified to remove this
stack size definition.

Change-Id: I2f7d77ea12a04b827fa15e2adc3125b1175e4c23
diff --git a/include/plat/arm/board/common/board_arm_def.h b/include/plat/arm/board/common/board_arm_def.h
index b4e4313..db2a8df 100644
--- a/include/plat/arm/board/common/board_arm_def.h
+++ b/include/plat/arm/board/common/board_arm_def.h
@@ -39,9 +39,7 @@
  */
 
 /* Size of cacheable stacks */
-#if DEBUG_XLAT_TABLE
-# define PLATFORM_STACK_SIZE 0x800
-#elif IMAGE_BL1
+#if IMAGE_BL1
 #if TRUSTED_BOARD_BOOT
 # define PLATFORM_STACK_SIZE 0x1000
 #else