s/drmtest_subtest_block/drmtest_subtest/

The _block postfix meant to convey that a C statement/block must
follow can be misread as the verb to block. So drop it.

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

tests/gem_exec_faulting_reloc.c

@@ -222,9 +222,9 @@ int main(int argc, char **argv)
 {
 	drmtest_subtest_init(argc, argv);
 
-	drmtest_subtest_block("normal")
+	drmtest_subtest("normal")
 		run(OBJECT_SIZE);
-	drmtest_subtest_block("no-prefault") {
+	drmtest_subtest("no-prefault") {
 		drmtest_disable_prefault();
 		run(OBJECT_SIZE);
 		drmtest_enable_prefault();