clk: qcom: gcc-x1e80100: Add missing UFS symbol mux clocks

clk: qcom: gcc-x1e80100: Add missing UFS symbol mux clocks

The UFS symbol RX/TX mux clocks were not defined previously.
Add these mux clocks so that clock rate propagation reaches
the muxes correctly.

Fixes: 161b7c401f4b ("clk: qcom: Add Global Clock controller (GCC) driver for X1E80100")
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260103-ufs_symbol_clk-v2-2-51828cc76236@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>