Switch to the mpdecision from @showp1984 because it is open source, more customizable, and overall better than the CAF/QCOM one

Change-Id: Ibb8d01848e5e2a390d94ecfaf316b54783ba8436
Update geeb defconfig to match geespr

Change-Id: I198ae99580fcc5faf2622cbb8852a4f9405e5462
Fix all mpdecision errors

Change-Id: I0d9d8120ba07d25f94beaba3997542413902eb2d
Get rid of undefined Makefile variables and change deprecated -mcpu to -mtune

Change-Id: I60f88cfd89af528630f9b591f1c8d064c7236ebe