nvmem: rockchip-otp: Add clks and reg_read to rockchip_data

In preparation to support new Rockchip OTP memory devices with different
clock configurations and register layout, extend rockchip_data struct
with the related members: clks, num_clks, reg_read.

Additionally, to avoid managing redundant driver data, drop num_clks
member from rockchip_otp struct and update all references to point to
the equivalent member in rockchip_data.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Tested-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-10-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>