BUGFIX: Do ontly go for TLAST check in Statemachine if window is not protected

Otherwise the SM is blocked because it will repeatedly go for the TLAST handling instead
of checking for a response.

hdl/psi_ms_daq_daq_sm.vhd

@@ -288,7 +288,7 @@ begin
 				v.State := CheckResp_s;
 				v.WinProtected	:= (others => '0');	-- No bursts where available on any stream, so all of them were checked and we can retry whether SW emptied a window.
 				for idx in 0 to Streams_g-1 loop
-					if (r.HasLastReg(idx) = '1') and (r.OpenCommand(idx) = '0') then
+					if (r.HasLastReg(idx) = '1') and (r.OpenCommand(idx) = '0') and (r.WinProtected(idx) = '0') then
 						v.State			:= ReadCtxStr_s;
 						v.HndlStream	:= idx;
 					end if;