tests/gem_fence_upload: Fix test wrapper

- tests with subtests need to be in the _M target for correct
  enumeration.

- No need for igt_exit when using the igt_(simple_)main wrappers.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

tests/Makefile.sources

@@ -36,6 +36,7 @@ TESTS_progs_M = \
 	gem_exec_parse \
 	gem_fenced_exec_thrash \
 	gem_fence_thrash \
+	gem_fence_upload \
 	gem_flink \
 	gem_flink_race \
 	gem_linear_blits \
@@ -96,7 +97,6 @@ TESTS_progs = \
 	gem_exec_blt \
 	gem_exec_lut_handle \
 	gem_fd_exhaustion \
-	gem_fence_upload \
 	gem_gtt_cpu_tlb \
 	gem_gtt_hog \
 	gem_gtt_speed \

tests/gem_fence_upload.c

@@ -116,6 +116,4 @@ igt_main
 
 	igt_subtest("performance")
 		performance();
-
-	igt_exit();
 }