Preprocessing Teleservice Id 0xFDEA SMS WAP

The SMS WAP specified Teleservice Id 0xFDEA requires an additional
header parsing to extract new Message Identifier and new User Data from
WDP SMS User Data.

Test: MT MMS in China Telecom N/W and atest CdmaSmsTest

Change-Id: I8c0edd53c0da7c5b54fe6aa5a05f5577676383d8
Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>