Update third_party/marl/BUILD.gn with new files
Update third_party/marl/BUILD.gn with new files

`include/marl/sal.h` was replaced with `include/marl/tsa.h`.
Also add other missing files.

Bug: b/140546382
Change-Id: I7f766b3c362de2ce6e4e317762de98db50467d8f
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43571
Reviewed-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>
Tested-by: Ben Clayton <1f693eb7158dc33015048c09d6712f74dabddf79@google.com>

bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,google/swiftshader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader