add OWNERS for prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.7

Reuse OWNERS from newer versions.

Bug: 203698882
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I62cbbd59b63c615531d9105c87349dba284d0bc5
1 file changed