helper/list: re-align with Linux kernel 6.3-rc1
Minor changes due to kernel switch to 100 char/line.
Added four new functions.
Silent checkpatch; we don't want to diverge from Linux reference
code.
Checkpatch-ignore: MACRO_ARG_REUSE, UNNECESSARY_PARENTHESES
Checkpatch-ignore: MACRO_ARG_PRECEDENCE
Change-Id: I1d2ff25bf3bab8cd0f5c9be55c7501795490ea75
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7568
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>