Fix header check

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>

Author: aggarg

.github/scripts/kernel_checker.py

@@ -156,6 +156,7 @@
 
 FREERTOS_ARM_COLLAB_COPYRIGHT_REGEX = r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright \(C\) 20\d\d Amazon.com, Inc. or its affiliates. All Rights Reserved\.( \*\/)?$)|" + \
                                       r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright 20\d\d(-20\d\d)? Arm Limited and/or its affiliates( +<open-source-office@arm\.com>)?( \*\/)?$)|" + \
+                                      r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright \(c\) 20\d\d(-20\d\d)? Arm Technology \(China\) Co., Ltd.All Rights Reserved\.( \*\/)?$)|" + \
                                       r"(^(;|#)?( *(\/\*|\*|#|\/\/))? <open-source-office@arm\.com>( \*\/)?$)"
 
 
@@ -198,6 +199,8 @@ def checkArmCollabFile(self, path):
             ]
             if (len(lines) > 0) and (lines[0].find("#!") == 0):
                 lines.remove(lines[0])
+            if (len(lines) > 0) and (len(lines[-1].strip()) == 0):
+                lines.remove(lines[-1])
 
         # Split lines in sections.
         headers = dict()
@@ -215,8 +218,10 @@ def checkArmCollabFile(self, path):
         text_equal = self.isValidHeaderSection(file_ext, "text", headers["text"])
         spdx_equal = self.isValidHeaderSection(file_ext, "spdx", headers["spdx"])
 
-        if text_equal and spdx_equal and len(headers["copyright"]) == 3:
-            isValid = True
+        if text_equal and spdx_equal:
+            # Some files do not have "open-source-office@arm.com" line.
+            if len(headers["copyright"]) == 3 or len(headers["copyright"]) == 2:
+                isValid = True
 
         return isValid