Dist build.prop files in soong

Equivalent to this make code:
https://cs.android.com/android/platform/superproject/main/+/main:build/make/core/main.mk;l=1605;drc=c0d44d45d83e1bcfec51f61c93ebfde8dbfc64d0

Fixes: 395161312
Test: m dist, ls out/dist/build.prop* on soong-only build
Change-Id: Ida979cf9141d43ffab8df8ff466ac0f89e742ef9