m7-common: enable wfd.

Change-Id: I8d95ce5cd9a090385844d6dfea38b8505fbc2fca
m7-common: Use new heap configuration for 1080p phones.

* Fixes jank in the launcher app drawer and improves app startup time.

Change-Id: I1454f32a24a07d7db8ea71badcfb0023b9f2c330