dt-bindings: spmi: split out common QCOM SPMI PMIC arbiter properties

dt-bindings: spmi: split out common QCOM SPMI PMIC arbiter properties

Split out the common SPMI PMIC arbiter properties for QCOM devices into a
separate file so that it can be included as a reference for devices
using them. This will be needed for the upcoming PMIC v8 arbiter
support patch, as the v8 arbiter also uses these common properties.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Jishnu Prakash <jishnu.prakash@oss.qualcomm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://patch.msgid.link/20260123182039.224314-8-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>