Update sd.asm

Fix for Issue #170.  Correct use of OUT to OUT0 during CSIO speed change.   Credit to Douglas Miller for finding this bug.

Co-Authored-By: Douglas Miller <16920069+durgadas311@users.noreply.github.com>

Source/HBIOS/sd.asm

@@ -1045,7 +1045,7 @@ SD_INITCARD5:
 	CALL	SD_WAITTX		; MAKE SURE WE ARE DONE SENDING
 	CALL	DLY32			; WAIT A BIT MORE FOR FINAL BIT
 	XOR	A			; ZERO MEANS MAX SPEED
-	OUT	(Z180_CNTR),A		; NOW SET CSIO PORT
+	OUT0	(Z180_CNTR),A		; NOW SET CSIO PORT
 #ENDIF
 ;
 	; ISSUE SEND_CSD (TO DERIVE CARD CAPACITY)