Copy over all build properties starting with patch_ to avoid missing something we need

BUG=skia:5946

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4542

Change-Id: I2c16ac84ceff598084263deb91795aa5b53cc42f
Reviewed-on: https://skia-review.googlesource.com/4542
Reviewed-by: Eric Boren <borenet@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
2 files changed