pinctrl: renesas: Synchronize PFC core with Linux 6.1.7

pinctrl: renesas: Synchronize PFC core with Linux 6.1.7

Synchronize R-Car PFC core with Linux 6.1.7,
commit 21e996306a6afaae88295858de0ffb8955173a15 .

Parts picked from
pinctrl: renesas: Synchronize R-Car Gen2/Gen3 tables with Linux 5.18.3
- Add pin groups for the green and high8 subsets of the Video IN pins
- Add MediaLB pins
- Add bias support for various SoCs
- Share more pin group data, to reduce size and ease review
- Miscellaneous cleanups, fixes and improvements.

This contains port of Linux kernel commit
6210905586ae ("pinctrl: renesas: Add shorthand for reserved register fields")
to handle negative entries in GROUP() macros correctly.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>