tests/fate/libavutil: switch cpu-test back to runecho so its results are vissible

(needs next commt too)
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

tests/fate/libavutil.mak

@@ -31,7 +31,7 @@ fate-bprint: CMD = run libavutil/bprint-test
 
 FATE_LIBAVUTIL += fate-cpu
 fate-cpu: libavutil/cpu-test$(EXESUF)
-fate-cpu: CMD = run libavutil/cpu-test $(CPUFLAGS:%=-c%) $(THREADS:%=-t%)
+fate-cpu: CMD = runecho libavutil/cpu-test $(CPUFLAGS:%=-c%) $(THREADS:%=-t%)
 fate-cpu: REF = /dev/null
 
 FATE_LIBAVUTIL += fate-crc