qcacld-3.0: Change max value of gEnableDynamicDTIM
In the current code, maximum possible value of gEnableDynamicDTIM is 5,
but for power save testing there is requirement to increase it by 4.
Accordingly, CFG_ENABLE_DYNAMIC_DTIM_MAX is changed to 9.
Change-Id: I93b8356bc703c3d1d4fa1a89601056cbd3c8b262
CRs-Fixed: 1079163