test: Drop the _test suffix on linker lists

Most test suites have a _test suffix. This is not necessary as there is
also a ut_ prefix.

Drop the suffix so that (with future work) the suite name can be used as
the linker-list name.

Remove the suffix from the pytest regex as well, moving it to the top of
the file, as it is a constant.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/cmd/fdt.c b/test/cmd/fdt.c
index e647851..74fd603 100644
--- a/test/cmd/fdt.c
+++ b/test/cmd/fdt.c
@@ -23,7 +23,7 @@
  */
 
 /* Declare a new fdt test */
-#define FDT_TEST(_name, _flags)	UNIT_TEST(_name, _flags, fdt_test)
+#define FDT_TEST(_name, _flags)	UNIT_TEST(_name, _flags, fdt)
 
 /**
  * make_test_fdt() - Create an FDT with just a root node
@@ -1465,8 +1465,8 @@
 
 int do_ut_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
-	struct unit_test *tests = UNIT_TEST_SUITE_START(fdt_test);
-	const int n_ents = UNIT_TEST_SUITE_COUNT(fdt_test);
+	struct unit_test *tests = UNIT_TEST_SUITE_START(fdt);
+	const int n_ents = UNIT_TEST_SUITE_COUNT(fdt);
 
 	return cmd_ut_category("fdt", "fdt_test_", tests, n_ents, argc, argv);
 }