serial: 8250_dw: Use reset array API to get resets

Some SoCs like StarFive JH7110 require two or more resets.
So change to use the reset array API to get resets.

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20240604084729.57239-3-hal.feng@starfivetech.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>