n7.1.2
swscale/ppc: Move VSX-using code to its own file
swscale/ppc/swscale_altivec: Simplify macro
swscale/ppc/swscale_ppc_template: Reindent after the previous commit
swscale/ppc: remove hScale8To19_vsx
lsws/ppc/yuv2rgb_altivec: Fix build in non-VSX environments with Clang
Merge remote-tracking branch 'qatar/master'
sws: rename SwsContext.swscale to convert_unscaled