dt-bindings: clock: Add R9A07G054 CPG Clock and Reset Definitions

Define RZ/V2L (R9A07G054) Clock Pulse Generator Core Clock and module
clock outputs, as listed in Table 7.1.4.2 ("Clock List r1.0") and also
add Reset definitions referring to registers CPG_RST_* in Section 7.2.3
("Register configuration") of the RZ/V2L Hardware User's Manual (Rev.
1.00, Nov. 2021).

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220126211003.6675-1-prabhakar.mahadev-lad.rj@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>