dt-bindings: spi: add SG2044 SPI NOR controller driver

Add SPI NOR driver for SG2044, including read, write operations.

Signed-off-by: Longbin Li <looong.bin@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250304083548.10101-2-looong.bin@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>