commit 3aa1ef8bcd69c508d9fdfd98709d0bbc92a5bd6c
author Colin Cross <ccross@android.com> Fri Apr 14 15:14:33 2017 -0700
committer Colin Cross <ccross@android.com> Mon Apr 17 11:33:50 2017 -0700
tree 35b9b22ebb361ad7b9d2669f418e644912c501e4
parent 41e5dff37097f557813f6461d4171a1a9a772205

Set PRIVATE_PREFIX when using $(transform-prebuilt-to-target)

If PRIVATE_PREFIX is unset transform-prebuilt-to-target references
$(DISPLAY) instead of $(HOST_DISPLAY) or $(TARGET_DISPLAY), which
causes unnecessary kati regenerations when the DISPLAY environment
variable changes.

Bug: 36901093
Bug: 37333696
Test: grep for $DISPLAY in out/build-${TARGET_PRODUCT}.ninja
Change-Id: Ia9802fc2b07da9b74e8f80dfdcef121408cd9817
(cherry picked from commit d2e778fb5ade71353b95e4b0992c44094b5e7d46)