clk: renesas: r9a09g047: Add clock and reset signals for the GBETH IPs

clk: renesas: r9a09g047: Add clock and reset signals for the GBETH IPs

Add clock and reset entries for the Gigabit Ethernet Interfaces (GBETH 0-1)
IPs found on the RZ/G3E SoC. This includes various PLLs, dividers, and mux
clocks needed by these two GBETH IPs.

Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: John Madieu <john.madieu.xa@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250702005706.1200059-2-john.madieu.xa@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>