dt-bindings: mmc: sdhci-of-dwcmhsc: Add Sophgo SG2044 support

The sdhci IP of SG2044 is similar to it of SG2042. They
share the same clock and controller configuration.

Add compatible string for SG2044.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250413223507.46480-8-inochiama@gmail.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>