common.sh: exclude all of /build/share

A /build/share/constants.json is needed so components can compile policy
files at build time.  We don't need this file to end up on the board.
Per review request I'm masking all of /build/share.

BUG=None
TEST=Local build with compiling changes.  Verified files get compiled
but the constants.json don't end up on the board.

Change-Id: I5fb52237b989a439cd93b90549fba23b1d1ad1f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/1919471
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Matt Delco <delco@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/common.sh b/common.sh
index 8ac4f8c..5c8bf5e 100644
--- a/common.sh
+++ b/common.sh
@@ -391,7 +391,7 @@
   *.proto
   */.keep*
   /build/libexec/tast
-  /build/share/tast
+  /build/share
   /etc/init.d
   /etc/runlevels
   /etc/selinux/intermediates