flash: startup.tcl: do not disable polling when not exiting

Change-Id: I31b8a8b4519d65d6587207a71eb08dcee8ddd6fd
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4243
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Tested-by: jenkins

src/flash/startup.tcl

@@ -62,8 +62,10 @@ proc program {filename args} {
 
 		if {[info exists reset]} {
 			# reset target if requested
+			if {$exit == 1} {
 				# also disable target polling, we are shutting down anyway
 				poll off
+			}
 			echo "** Resetting Target **"
 			reset run
 		}