checkpatch.pl: Fully re-sync with v5.7

While commit 048a6482 ("checkpatch.pl: Update to v5.7") largely
re-syncs us with checkpatch.pl from v5.7 there are a number of things
missing still.  Re-copy the script and again take care to keep our
allowed debug prints and now localized checks intact.

Fixes: 048a6482 ("checkpatch.pl: Update to v5.7")
Signed-off-by: Tom Rini <trini@konsulko.com>