qcom_defconfig: ignore bootable flag

support ESPs which don't have the ESP bit set.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/configs/qcom_defconfig b/configs/qcom_defconfig
index bfb1c2e..c04ed0b 100644
--- a/configs/qcom_defconfig
+++ b/configs/qcom_defconfig
@@ -10,6 +10,7 @@
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_BOOTSTD_FULL=y
+CONFIG_BOOTSTD_IGNORE_BOOTABLE=y
 # CONFIG_BOOTMETH_VBE is not set
 CONFIG_BOOTDELAY=1
 CONFIG_OF_BOARD_SETUP=y