BACKPORT: firmware: arm_scmi: Extend perf protocol ops to get information of a domain

Similar to other protocol ops, it's useful for an scmi module driver to get
some generic information of a performance domain. Therefore, let's add a
new callback to provide this information. The information is currently
limited to the name of the performance domain and whether the set-level
operation is supported, although this can easily be extended if we find the
need for it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20230825112633.236607-3-ulf.hansson@linaro.org


Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Bug: 323966425
Change-Id: Ica11495c1ba40c646cf835418788795e6671e7db
(cherry picked from commit 3d99ed60)
[nikunj: Resolved minor conflict in drivers/firmware/arm_scmi/perf.c ]
[anantg: Resolved minor conflict in drivers/firmware/arm_scmi/perf.c ]
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Signed-off-by: Anant Goel <quic_anantg@quicinc.com>