clk: qcom: add select QCOM_GDSC for SM6350

QCOM_GDSC is needed for the gcc driver to probe.

Fixes: 131abae9 ("clk: qcom: Add SM6350 GCC driver")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20211007212444.328034-2-luca@z3ntu.xyz


Signed-off-by: Stephen Boyd <sboyd@kernel.org>