qcom_defconfig: enable ext4

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/configs/qcom_defconfig b/configs/qcom_defconfig
index 494f6d7..2022b83 100644
--- a/configs/qcom_defconfig
+++ b/configs/qcom_defconfig
@@ -32,6 +32,8 @@
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_CAT=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_BMP=y
 CONFIG_CMD_EFIDEBUG=y
 CONFIG_CMD_FAT=y