Ensure CAM stability after reset

Wait 2 secs in low level CI reset function as some CAMs become crazy
if we talk to them just after the reset (SmarDTV / TDT Premium).

from: faudebert-anevia authored and Richard Bérichon committed on Apr 2, 2012

frontends/cxd2099.c

@@ -590,6 +590,10 @@ static int slot_reset(struct dvb_ca_en50221 *ca, int slot)
 		}
 	}
 	mutex_unlock(&ci->lock);
+
+	/* Ensure cam stability after reset */
+	msleep(2000);
+	
 	return 0;
 }