c: Fix shruw and mulhuw
c: Fix shruw and mulhuw

okuoku/nmosh-orc,Distrotech/orc,jpakkane/orc,MOXfiles/orc,okuoku/nmosh-orc,ahmedammar/platform_external_gst_liborc,ijsf/OpenWebRTC-orc,jpakkane/orc,ahmedammar/platform_external_gst_liborc,Distrotech/orc,mojaves/orc,MOXfiles/orc,mojaves/orc,Distrotech/orc,ijsf/OpenWebRTC-orc,MOXfiles/orc,jpakkane/orc,ijsf/OpenWebRTC-orc,okuoku/nmosh-orc,mojaves/orc