Roshan Pius 482e9d9984 DO NOT MERGE Add a new carrier config for DTMF tone gap in CDMA.
Adding a new carrier config key to specify the gap between the DTMF
tones sent out to the network. Setting it to 100ms by default.
This is based on a similar set of changes for IMS calls: ag/747865.

BUG: 19118840
Change-Id: Ifb64fe406509fe7c401ad1c4b4e906d6643e327b
2015-10-16 09:45:29 -07:00
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