raphael_defconfig: Enable OVERLAY_FS

No idea way it was disabled

arch/arm64/configs/raphael_defconfig

@@ -532,7 +532,6 @@ CONFIG_STAGING=y
 CONFIG_ASHMEM=y
 CONFIG_ION=y
 CONFIG_QCA_CLD_WLAN=y
-CONFIG_KSU=y
 CONFIG_QCOM_GENI_SE=y
 CONFIG_QPNP_REVID=y
 CONFIG_SPS=y
@@ -659,6 +658,7 @@ CONFIG_FS_VERITY_BUILTIN_SIGNATURES=y
 CONFIG_QUOTA=y
 CONFIG_QFMT_V2=y
 CONFIG_FUSE_FS=y
+CONFIG_OVERLAY_FS=y
 CONFIG_OVERLAY_FS_REDIRECT_DIR=y
 CONFIG_OVERLAY_FS_INDEX=y
 CONFIG_INCREMENTAL_FS=y