tests/fate/libavutil: run cpu test and display the cpus detected feature set

With this the fate clients runtime cpu feature set should be visible
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

tests/fate/libavutil.mak

@@ -29,6 +29,12 @@ FATE_LIBAVUTIL += fate-bprint
 fate-bprint: libavutil/bprint-test$(EXESUF)
 fate-bprint: CMD = run libavutil/bprint-test
 
+FATE_LIBAVUTIL += fate-cpu
+fate-cpu: libavutil/cpu-test$(EXESUF)
+fate-cpu: CMD = runecho libavutil/cpu-test
+fate-cpu: REF = /dev/null
+fate-cpu: CMP = null
+
 FATE_LIBAVUTIL += fate-crc
 fate-crc: libavutil/crc-test$(EXESUF)
 fate-crc: CMD = run libavutil/crc-test