avutil/tests: add cpu_init to .gitignore and tests/fate

This is a follow-up to commit d84a2120,
which added the libavutil/tests/cpu_init.c.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavutil/tests/.gitignore

@@ -9,6 +9,7 @@
 /cast5
 /color_utils
 /cpu
+/cpu_init
 /crc
 /des
 /dict

tests/fate/libavutil.mak

@@ -44,6 +44,11 @@ fate-cpu: libavutil/tests/cpu$(EXESUF)
 fate-cpu: CMD = runecho libavutil/tests/cpu $(CPUFLAGS:%=-c%) $(THREADS:%=-t%)
 fate-cpu: REF = /dev/null
 
+FATE_LIBAVUTIL += fate-cpu_init
+fate-cpu_init: libavutil/tests/cpu_init$(EXESUF)
+fate-cpu_init: CMD = run libavutil/tests/cpu_init
+fate-cpu_init: REF = /dev/null
+
 FATE_LIBAVUTIL += fate-crc
 fate-crc: libavutil/tests/crc$(EXESUF)
 fate-crc: CMD = run libavutil/tests/crc