dt-bindings: qcom: geni-se: Add 'firmware-name' property for firmware loading

dt-bindings: qcom: geni-se: Add 'firmware-name' property for firmware loading

Document the 'firmware-name' property in the device tree bindings to
support loading SE (Serial Engine) firmware from the protocol driver,
allowing for more flexible firmware management.

Co-developed-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
Signed-off-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
Signed-off-by: Viken Dadhaniya <quic_vdadhani@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250303124349.3474185-2-quic_vdadhani@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>