drivers: soc: llcc_perfmon: fix scid_status issue

Scid status needs to be collected from individual channels, not
from broadcast status register. This been updated.

Change-Id: I22d21b7375ca1bb1d234d72353aa8baaf55902c9
Signed-off-by: Avinash Philip <avinashp@codeaurora.org>
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>