Up until now, the GPLL0_DIV MMSS input has been modeled as a fixed
child of MMSS_GPLL0_DIV that's always-on. Properly representing the
former in the GCC driver makes us unable to keep doing so.

Consume MSS_GPLL0_DIV through fw_name ("gpll0_div") as well as add a
fixed .name link to keep backwards compatibility.
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230622-topic-8998clk-v2-4-6222fbc2916b@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>