staging: comedi: addi_apci_3120: use correct iobase to write AMCC registers

The AMCC registers are accessed using the base address devpriv->i_IobaseAmcc
not devpriv->i_IobaseAddon. Fix a couple writes in apci3120_interrupt_dma()
that are using the wrong base address.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c

@@ -1244,7 +1244,7 @@ static void apci3120_interrupt_dma(int irq, void *d)
 		next_dmabuf = &devpriv->dmabuf[1 - devpriv->ui_DmaActualBuffer];
 
 		ui_Tmp = AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO;
-		outl(ui_Tmp, devpriv->i_IobaseAddon + AMCC_OP_REG_AGCSTS);
+		outl(ui_Tmp, devpriv->i_IobaseAmcc + AMCC_OP_REG_AGCSTS);
 
 		/*  changed  since 16 bit interface for add on */
 		outw(APCI3120_ADD_ON_AGCSTS_LOW, devpriv->i_IobaseAddon + 0);
@@ -1306,7 +1306,7 @@ static void apci3120_interrupt_dma(int irq, void *d)
 		 * ADDED REINITIALISE THE DMA
 		 */
 		ui_Tmp = AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO;
-		outl(ui_Tmp, devpriv->i_IobaseAddon + AMCC_OP_REG_AGCSTS);
+		outl(ui_Tmp, devpriv->i_IobaseAmcc + AMCC_OP_REG_AGCSTS);
 
 		/*  changed  since 16 bit interface for add on */
 		outw(APCI3120_ADD_ON_AGCSTS_LOW, devpriv->i_IobaseAddon + 0);