modify libc_test path and fix ist of failed use cases

Signed-off-by: NFondMemoryVVV <mashuai53@huawei.com>

commonlibrary/toolchain/BUILD.gn

@@ -44,7 +44,7 @@ action("tar_testcases") {
   _outputs = [ "$target_out_dir/libc-test.tar" ]
   outputs = _outputs
 
-  input_path = rebase_path("$test_path/tests/unittest/libc-test")
+  input_path = rebase_path("$test_path/musl/libc-test")
   output_path = rebase_path("$test_path/suites/acts/testcases/libc-test.tar")
 
   print("root_build_dir-49", root_build_dir)

commonlibrary/toolchain/libc-test/src/toolchaintest.cpp

@@ -36,7 +36,7 @@ using namespace testing;
 namespace OHOS {
 class toolchaintest : public ::testing::TestWithParam<string> {};
 
-static string filepath = "/data/local/tmp/libc-test/src";
+static string filepath = "/data/local/tmp/libc-test";
 static vector<std::string> temp = runtest::GetFileNames(filepath);
 
 volatile int t_status = 0;