rockchip: efuse: dm: change to use dev_read_addr

This changes the rockchip-efuse driver to use dev_read_addr instead of
devfdt_get_addr.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>