qcacld-3.0: Add if check before calling cds_force_assert_target()
If CNSS function pld_force_collect_target_dump() returns 0, this means
that FW is already asserted and should not call cds_force_assert_target().
Add an if check for pld_force_collect_target_dump() to only call
cds_force_assert_target() when it is not 0.
Change-Id: Ib784c1a406b93327942164a975994065149aed90
CRs-Fixed: 2799461