[LIT] Update the lit to use remote-run check and input prefix

Author: shahmishal

test/lit.cfg

@@ -1945,7 +1945,7 @@ def configure_remote_run():
         "/usr/bin/env " +
         construct_library_path_env(remote_run_lib_path) +
         "'{0}'/remote-run ".format(config.swift_utils) +
-        "--input-prefix '{0}' ".format(config.src_root) +
+        "--input-prefix '{0}' ".format(config.swift_src_root) +
         "--output-prefix %t " +
         "--remote-dir '{0}'%t ".format(remote_tmp_dir) +
         "{0} ".format(' '.join(remote_run_extra_args)) + 
@@ -2148,7 +2148,7 @@ if run_vendor != 'apple':
     if libdispatch_path is not None:
        target_stdlib_path.append(libdispatch_path)
 
-if 'remote-run-host' in lit_config.params:
+if 'remote_run_host' in lit_config.params:
     configure_remote_run()
 elif not kIsWindows:
     if 'use_os_stdlib' in lit_config.params: