clocksource/drivers: Add support for the Renesas RZ/N1 timers

The Renesas RZ/N1 timer block controller is the controller in charge of
timers available in the Renesas RZ/N1 SoCs family.

This control

clocksource/drivers: Add support for the Renesas RZ/N1 timers

The Renesas RZ/N1 timer block controller is the controller in charge of
timers available in the Renesas RZ/N1 SoCs family.

This controller handles 8 timers:
- 6 16-bit timers
- 2 32-bit timers

Each timer has its own interrupt, its own prescaler that can be used to
divide the clock by 25 and all of them can work in either one-shot or
periodic mode.

Signed-off-by: Herve Codina (Schneider Electric) <herve.codina@bootlin.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://patch.msgid.link/20261001082225.125956-3-herve.codina@bootlin.com

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