gbmc-bridge: latent bug fix: create directory before placing purge flag

Platforms-Affected: all ttf
Tested: yes on actual machine
Fusion-Link: fusion2 n/a
Google-Bug-Id: 421959821
Change-Id: I3ed94c5c5b77ba9e82167440d3c25fca762e9160
Signed-off-by: Mo Elbadry <elbadrym@google.com>
(cherry picked from commit f5a6ad9106aea7d326b6185fdf6db5d8a97a128f)
diff --git a/recipes-google/networking/gbmc-bridge/49-purge-rwfs.sh b/recipes-google/networking/gbmc-bridge/49-purge-rwfs.sh
index b9fa3a3..d2e643a 100644
--- a/recipes-google/networking/gbmc-bridge/49-purge-rwfs.sh
+++ b/recipes-google/networking/gbmc-bridge/49-purge-rwfs.sh
@@ -28,6 +28,7 @@
   fi
   update_netboot_status "rwfs_check" "RWFS purge needed" "SUCCESS"
   update_netboot_status "rwfs_set" "Setting RWFS purge flag" "START"
+  mkdir -p /var/google/ || return
   touch /var/google/do-rwfs-purge
 
   update_netboot_status "rwfs_set" "RWFS purge flag placed, powercycle needed to complete" "SUCCESS"