radeon: Wire up radeon-symbol-check to make check

This was missed in 552de225bf2740ba0cb52312c21353d71d934b8c

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/radeon/Makefile.am b/radeon/Makefile.am
index 25c03d3..31f19e5 100644
--- a/radeon/Makefile.am
+++ b/radeon/Makefile.am
@@ -43,4 +43,5 @@
 pkgconfigdir = @pkgconfigdir@
 pkgconfig_DATA = libdrm_radeon.pc
 
+TESTS = radeon-symbol-check
 EXTRA_DIST = Android.mk $(LIBDRM_RADEON_BOF_FILES) $(TESTS)