ARM: dts: qcom: ipq4019: pass XO and sleep clocks to GCC

Directly pass XO and sleep clocks to GCC via phandles.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230214162325.312057-3-robert.marko@sartura.hr