[source] arc770: gzip rootfs image to save some space

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/515d012e6daf4f1b3513688b942516211dfd6178

commit 515d012e6daf4f1b3513688b942516211dfd6178
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Jan 13 16:22:13 2017 +0100

    arc770: gzip rootfs image to save some space
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/arc770/image/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/arc770/image/Makefile b/target/linux/arc770/image/Makefile
index 0f3de24..f52f840 100644
--- a/target/linux/arc770/image/Makefile
+++ b/target/linux/arc770/image/Makefile
@@ -81,6 +81,7 @@ define Image/Build
 	$(call Image/Build/$(1),$(1))
 	$(call Image/Build/SDCard,$(1))
 	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/$(IMG_PREFIX)-root.$(1) bs=128k conv=sync
+	$(call Image/Gzip,$(BIN_DIR)/$(IMG_PREFIX)-root.$(1))
 endef
 
 $(eval $(call BuildImage))