tree bc0f6996223d50ad688ea664ad9ac08980abfd45
parent 6e68a9ae4994240585b530e3d7b1e48a749f8b9c
author Yifan Hong <elsk@google.com> 1555970097 -0700
committer Yifan Hong <elsk@google.com> 1556056628 -0700

Allow multiple DEVICE_MATRIX_FILE.

Allow to merge multiple items in DEVICE_MATRIX_FILE.
Test: build device matrix
Bug: 130714844

Change-Id: I81783e7525fb4933768ef5fbb1ea4cf01d7c50a5
Merged-In: I81783e7525fb4933768ef5fbb1ea4cf01d7c50a5