Update moonlight-common-c with vectorized FEC for non-ARMv8/x64 platforms

Also remove the workaround for Steam Link since vectorization is enabled by compiler flags now.

moonlight-common-c/moonlight-common-c.pro

@@ -95,8 +95,3 @@ CONFIG(debug, debug|release) {
 *-g++|*-clang* {
     QMAKE_CFLAGS_WARN_ON += -Wno-unused-parameter
 }
-
-# Enable NEON optimizations on Steam Link
-config_SL {
-    DEFINES += OBLAS_NEON
-}