Pass command line arguments to make from make_all.sh

This would allow us to do something like:
  util/make_all.sh -j32
  util/make_all.sh V=1

BUG=None
TEST=util/make_all.sh -j
TEST=util/make_all.sh V=1
BRANCH=None

Change-Id: Ifed0baf6c94fbe8b0296cbdc70ba84f92f04b75b
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/64268
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

util/make_all.sh

@@ -10,7 +10,7 @@
 boards=$(ls -1 board | grep -v host)
 for b in $boards; do
     echo ======== building $b
-    make BOARD=$b
+    make BOARD=$b $*
 done
 
 # Run unit tests