Use build flag RELEASE_DEFAULT_MODULE_BUILD_FROM_SOURCE to enable/disable...

Use build flag RELEASE_DEFAULT_MODULE_BUILD_FROM_SOURCE to enable/disable module build from prebuilts.

This will allow us to enable/disable module build from prebuilts based
on different release config.

Ignore-AOSP-First: Specific to enabling prebuilts in trunk stable
Bug: 293101517
Test: m (use prebuilts when building next and build from source
when building trunk)

Change-Id: Ie81e033e9d4ac9c0221b796e7e46bcc117ceadbb