config: Use carrier config in ROM by default

Bug: 314890118

Test: Flash ROM and confirm the carrier config follows the ROM.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:06e99301dd1bf20da055af6484694a9e7115dc73)
Merged-In: Iffdb9a3a53e82d86d9917d84a7ce6ac49a3bad2a
Change-Id: Iffdb9a3a53e82d86d9917d84a7ce6ac49a3bad2a
1 file changed