Fix the compatible to make the driver probe and tell the
driver where to look for the "xo" clock to make sure everything
works.

Then we get a happy (eh, happier) 8996:

somainline-sdcard:/home/konrad# cat /sys/kernel/debug/clk/pwrcl_pll/clk_rate
1152000000

Don't backport without "arm64: dts: qcom: msm8996: Add CPU opps", as
the system fails to boot without consumers for these clocks.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210527192958.775434-1-konrad.dybcio@somainline.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>