diffstat: upgrade 1.65 -> 1.66

diffstat: upgrade 1.65 -> 1.66

avoid-check-user-break-cc.patch
refreshed for 1.66

License-Update: Copyright year updated to 2024.

Changelog:
==========
-improve handling of git diff's
-update install-sh
-improve configure script checks, reducing compiler warnings

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>