[build] Add mako sources to py actions using it

... so these actions are more incrementally correct. i.e. changes in
mako should trigger rebuild of these actions when building
incrementally.

Change-Id: I595ca1def6ec5b78ab8ee59fd5e501258f15151c
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/503620
Reviewed-by: Anirudh Mathukumilli <rudymathu@google.com>
Reviewed-by: David Fang <fangism@google.com>
1 file changed