interconnect: qcom: sdm660: Correct NOC_QOS_PRIORITY shift and mask

The NOC_QOS_PRIORITY shift and mask do not match what vendor kernel
defines [1].  Correct them per vendor kernel.  As the result of
NOC_QOS_PRIORITY_P0_SHIFT being 0, the definition can be dropped and
regmap_update_bits() call on P0 can be simplified a bit.

[1] https://source.codeaurora.org/quic/la/kernel/msm-4.4/tree/drivers/soc/qcom/msm_bus/msm_bus_noc_adhoc.c?h=LA.UM.8.2.r1-04800-sdm660.0#n37



Fixes: f80a1d41 ("interconnect: qcom: Add SDM660 interconnect provider driver")
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Link: https://lore.kernel.org/r/20210902054915.28689-1-shawn.guo@linaro.org


Signed-off-by: Georgi Djakov <djakov@kernel.org>