Create frameworks/base/telephony/common for common non-mainline telephony code.

And move mms util code to the new folder.

Test: basic sanity
Bug: 140763963
Merged-in: I0d92ed3fca1fc186484ea8d3c5d17b6e332e7d22
Change-Id: I0d92ed3fca1fc186484ea8d3c5d17b6e332e7d22
(cherry picked from commit d355153dcbc125b80113c31dafc80afe1a5fddd6)
36 files changed