tests/qtest/aspeed_smc-test: Fix memory leaks

Link: https://patchwork.kernel.org/project/qemu-devel/patch/20250509175047.26066-1-farosas@suse.de/

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250513080806.1005996-1-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

tests/qtest/aspeed_smc-test.c

@@ -228,5 +228,10 @@ int main(int argc, char **argv)
     unlink(ast2500_evb_data.tmp_path);
     unlink(ast2600_evb_data.tmp_path);
     unlink(ast1030_evb_data.tmp_path);
+    g_free(palmetto_data.tmp_path);
+    g_free(ast2500_evb_data.tmp_path);
+    g_free(ast2600_evb_data.tmp_path);
+    g_free(ast1030_evb_data.tmp_path);
+
     return ret;
 }