spi: intel: Take possible chip address into account in intel_spi_read/write_reg()

The SPI-NOR operation can have non-zero chip address as well so take
this into account in intel_spi_read/write_reg().

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20221025064623.22808-4-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>