aokp: add Sony Xperia V and Xperia T/TX

PS4 : added mint to vendorsetup and update overlays
PS5 : (derp) add mint to AndroidProducts.mk
PS6 : remove unneeded overlay arrays
PS7 : also add Xperia TX (a variant of T)

Change-Id: I6d037d52b2ad0221ff3f3af87df06ea08bc62435
Signed-off-by: ChampionSwimmer <android@championswimmer.tk>
Merge "aokp: add Sony Xperia V and Xperia T/TX" into jb-mr1