Enable static RROs by default

Static RROs should be always enabled.
This is a missing part from ag/1949458.
The design details are in go/treble-static-rro.

Test: building succeeded and tested with static RROs.
Bug: 35742444
Change-Id: Ia9851f91c97cdde2436a29a161194eeb56ea47d5
1 file changed