Set KEY_CARRIER_CONFIG_APPLIED_BOOL to true after loading is done

The key KEY_CARRIER_CONFIG_APPLIED_BOOL should be set to true only if
1. There is no carrier app and the default app is done loading
2. There is a carrier app and the carrier app is done loading

(cherry picked from commit 0e3c3dcf079da69bb49bf8ae5b82232cd2804eff)

Bug: 137795539
Test: Telephony Sanity Test
Merged-in: I9077e691f4d498ac7afaa7128d79c3095641d116
Change-Id: I9077e691f4d498ac7afaa7128d79c3095641d116
1 file changed