PCI: Disable L0s support for SDX65 with QPS615 on CPE platform

NoC timeout issues are seen with HSP attach over QPS615 switch while
IPA is accessing HSP specific registers.

At the time of issue link state from PARF register dump showed that
link is in L0s.

So, disable the L0s state as a work-around
(vetted by hardware verification team) and this change should have
minimum power impact.

Change-Id: I21ddffdc69d83ece01ac8546c22b50b450cc6ed5
Signed-off-by: Paras Sharma <quic_parass@quicinc.com>