add i9305 maintainers

Change-Id: If6e2a3cf8474d3709646daa5ea94b16d4973e8f4
contributors: add Galaxy R maintainers

Change-Id: I474068e4e160e7ce01667c91c9cc35d06b4b3ae5
Merge remote-tracking branch 'github/cm-10.1' into jb-mr1