dt-bindings: clock: Add r9a09g011 CPG Clock Definitions

dt-bindings: clock: Add r9a09g011 CPG Clock Definitions

Define RZ/V2M (R9A09G011) Clock Pulse Generator module clock outputs
(CPG_CLK_ON* registers), and reset definitions (CPG_RST_* registers)
in Section 48.5 ("Register Description") of the RZ/V2M Hardware User's
Manual (Rev. 1.10, Sep. 2021).

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220503115557.53370-3-phil.edworthy@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>