p1-common: add new sec-jack keymap

actually p1 devices have only one headset button (key_media).
this patch add support for another kind of headset (like 3 buttons).

requires kernel changes:

https://gerrit.omnirom.org/7967

Change-Id: I9568be2c388e8f82f9042989df51c4d72cf68ea9
Merge "p1-common: add new sec-jack keymap" into android-4.4