Use config provider for OEM MMI codes

Previously the OEM MMI codes are hardcoded and inadvertently affected other devices. In this CL it is read from the config provider instead. The config provider is expected to provide values based on the OEM.

Bug: 72162360,74016291
Test: SpecialCharSequenceMgrTest
PiperOrigin-RevId: 188786408
Change-Id: Ie70e49a8a9d2ced5da9cf502c020477615bbe8a2
1 file changed