meta-zaius: Add FLASH_SIZE to conf

This option pads unused portions of the flash, up to 64 MiB, with 0xFF.

Signed-off-by: Xo Wang <xow@google.com>
Change-Id: I345a56342fdc16a079ea1b96d82adb2e1d9c4a15
diff --git a/meta-zaius/conf/machine/zaius.conf b/meta-zaius/conf/machine/zaius.conf
index f342da7..4aca420 100644
--- a/meta-zaius/conf/machine/zaius.conf
+++ b/meta-zaius/conf/machine/zaius.conf
@@ -3,6 +3,8 @@
 
 UBOOT_MACHINE = "ast_g5_ncsi_config"
 
+FLASH_SIZE = "65536"
+
 require conf/machine/include/ast2500.inc
 require conf/machine/include/obmc-bsp-common.inc
 require conf/machine/include/ingrasys.inc