bugfix: sysupgrade needs more tmpfs space.

Increase space on tmpfs just before launching sysupgrade
when the device has had tmpfs limited to 6.5mb

Change-Id: I5b27e6812017c4cbe5d9cb3f53cb04d09892edf4

files/usr/local/bin/spawn_sysupgrade

@@ -1,5 +1,12 @@
 #!/bin/sh
 
+egrep "/tmp.*size=6656k" /proc/mounts > /dev/null
+if [ $? -eq 0 ]
+then
+    mount tmpfs /tmp -o remount,size=10240K
+fi
+
+
 /sbin/sysupgrade -d 7 -f /tmp/arednsysupgradebackup.tgz -q "$1" 2>&1
 
 rc=$?; if [ $rc != 0 ]; then /sbin/reboot; fi