Partial SAMSUNG cleanup.

-brought all the entries that have a common name to the top
-added a few common names
-deleted a few entries that are not Android devices
-added Galaxy S4 Active per Issue #12
A lot more MOTOROLA entries.

Also updated N7 2012's & AT&T HOX's entries.
Add Xperia SP board

grabbed from Stock build.prop (even though the device family is viskan)
Merge pull request #15 from gu1dry/pull1

A lot more MOTOROLA entries.
Merge pull request #16 from uberlaggydarwin/patch-1

Add Xperia SP board
Merge pull request #14 from gu1dry/pull2

Partial SAMSUNG cleanup.