DO NOT MERGE. Fix building support library using gradle when full-sdk is missing.
DO NOT MERGE. Fix building support library using gradle when full-sdk is missing.

Update build.gradle to point to API 25 Android Jar.

Bug: 34875427
Test: Android studio is now happy and shows no errors.
Change-Id: I4ebd3511cf311a943ffabf967f79e81fa69d8413

AndroidX/androidx,AndroidX/androidx,androidx/androidx,aosp-mirror/platform_frameworks_support,AndroidX/androidx,AndroidX/androidx,aosp-mirror/platform_frameworks_support,aosp-mirror/platform_frameworks_support,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,androidx/androidx,aosp-mirror/platform_frameworks_support,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,aosp-mirror/platform_frameworks_support,AndroidX/androidx