gcc_gpll1_out_even clock is referenced as a parent, but not registered
with the clock framework. Hence add support to register the same.

Fixes: 1c9efb0b ("clk: qcom: Add QDU1000 and QRU1000 GCC support")
Signed-off-by: Imran Shaik <quic_imrashai@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230803105741.2292309-5-quic_imrashai@quicinc.comSigned-off-by: Bjorn Andersson <andersson@kernel.org>