move LCD blits to SkBlitter_ARGB32.cpp

They're only specialized up to SSE2 or NEON,
both of which are typical baseline builds now.

Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: If2b2bbd5b002038c68c0064ee78d75911a33b988
Reviewed-on: https://skia-review.googlesource.com/c/170064
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
17 files changed