Require Tizen 11 for tcore GN builds

Author: JSUYA

tools/gn

@@ -58,7 +58,7 @@ def get_clang_version(toolchain):
   # "Ubuntu clang version 11.0.0-2~ubuntu20.04.1"
   output = subprocess.run(
     [clang_path, '--version'], encoding='utf-8', stdout=subprocess.PIPE).stdout
-  match = re.search('(\d+)\.\d+\.\d+', output)
+  match = re.search(r'(\d+)\.\d+\.\d+', output)
   if match:
     return int(match.group(1))
   else:
@@ -125,8 +125,8 @@ def main():
       api_value = float(args.api_version)
     except ValueError:
       api_value = 0.0
-    if api_value < 10.0:
-      sys.exit('--use-tcore requires --api-version 10.0 or higher '
+    if api_value < 11.0:
+      sys.exit('--use-tcore requires --api-version 11.0 or higher '
                '(tizen-core packages are only published for Tizen 11+). '
                'Got --api-version {}.'.format(args.api_version))