Enable asm compilation in libjpeg_turbo on Linux.

build/secondary/third_party/libjpeg_turbo/BUILD.gn

Index: build/secondary/third_party/libjpeg_turbo/BUILD.gn
diff --git a/build/secondary/third_party/libjpeg_turbo/BUILD.gn b/build/secondary/third_party/libjpeg_turbo/BUILD.gn
index bf35d07eaa8c1ccff6cc63b29a97a74fd66900e9..4da2b7c27cf040142e21208dcc6dfd83991e5b12 100644
--- a/build/secondary/third_party/libjpeg_turbo/BUILD.gn
+++ b/build/secondary/third_party/libjpeg_turbo/BUILD.gn
@@ -198,14 +198,11 @@ source_set("libjpeg") {
 
   # MemorySanitizer doesn't support assembly code, so keep it disabled in
   # MSan builds for now.
-  # TODO: Enable on Linux when .asm files are recognized.
-  if (is_msan || is_linux) {
+  if (is_msan) {
     sources += [ "jsimd_none.c" ]
   } else {
     deps = [
       ":simd",
     ]
   }
-
-  # TODO(GYP): Compile the .asm files with YASM as GYP does.
 }