Enhance SLIM_VERSION and display in Build info. [1/2]

Change-Id: I673c07d65422c1485ea3c4b516a1c28061cd3065
Off to JDQ39E

Dumb Google pushed no code... Just mako kernel changes
for JDQ39E. Still we do like a shiny new tag

Change-Id: I40ae0640b955899912676b4ac58836aed13f7453
Trim Sounds as we have them in slim

Change-Id: Ia4fe9c5a491d77b7c23077363e6ecf476e987089
Merge remote-tracking branch 'slim/jb4.2' into mirage