Add product partition file support This is needed for Sunfish too. TEST: build and flashed coral. Made phone call and text message. BUG: 145289377 BUG: 152444305 Merged-In: I201ac6c73a3658b38ae3790d9a90c9805f656ad5 Merged-In: I2e86176285b888a923cb44278767af9f16710635 Change-Id: I201ac6c73a3658b38ae3790d9a90c9805f656ad5 (cherry picked from commit 38ff933a4ea9dc8b8b96ad91b33c7851e220c693)