Synchronize sources of LASX from BUILD.gn to CMakeList.txt

https://bugs.webkit.org/show_bug.cgi?id=280505

Reviewed by NOBODY (OOPS!).

Synchronize sources about LASX from BUILD.gn to CMakeList.txt
to fix error during linking on loong64 platform, like:

`ld.lld: error: undefined hidden symbol: SkOpts::Init_lasx()`

* Source/ThirdParty/skia/CMakeLists.txt:
Add:
src/core/SkBitmapProcState_opts_lasx.cpp
src/core/SkBlitRow_opts_lasx.cpp
src/core/SkSwizzler_opts_lasx.cpp
src/opts/SkOpts_lasx.cpp