Overwrite /etc/fstab from a package context

Change-Id: I34d1ecbae354fe185071df743f698e59c8ffc38a
diff --git a/package/czechlight-cfg-fs/czechlight-cfg-fs.mk b/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
index a598682..a0c2e8c 100644
--- a/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
+++ b/package/czechlight-cfg-fs/czechlight-cfg-fs.mk
@@ -13,6 +13,9 @@
 endif
 
 define CZECHLIGHT_CFG_FS_INSTALL_TARGET_CMDS
+	$(INSTALL) -D -m 0644 \
+		$(BR2_EXTERNAL_CZECHLIGHT_PATH)/package/czechlight-cfg-fs/etc-fstab \
+		$(TARGET_DIR)/etc/fstab
 	mkdir -p $(TARGET_DIR)/usr/lib/systemd/system/local-fs.target.wants/
 	$(INSTALL) -D -m 0644 \
 		$(BR2_EXTERNAL_CZECHLIGHT_PATH)/package/czechlight-cfg-fs/etc-overlay.service \
diff --git a/board/czechlight/common/overlay/etc/fstab b/package/czechlight-cfg-fs/etc-fstab
similarity index 100%
rename from board/czechlight/common/overlay/etc/fstab
rename to package/czechlight-cfg-fs/etc-fstab