Enable Turkish language encoding for SMS messages. Adds an MCC-specific config.xml override to enable the Turkish language tables for Turkish SIM cards. Also modifies GsmAlphabet.java to load the config.xml values before use, so the SMSDispatcher will get the current values instead of caching the boot-time values before the MCC is loaded. Bug: 7422368 Change-Id: I57cd5fcc1d04a2d0cba3e8b9022078679cf5d4c1