scripts/spdxcheck: Exclude top-level README

Nothing copyrightable to see here.

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: KAGA-KOKO

scripts/spdxexclude

@@ -15,3 +15,4 @@ arch/*/configs/
 # Other files without copyrightable content
 /CREDITS
 /MAINTAINERS
+/README