hw/dma/omap_dma: Use qemu_log_mask(UNIMP) instead of printf

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180624040609.17572-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/dma/omap_dma.c

@@ -18,6 +18,7 @@
  * with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 #include "qemu/osdep.h"
+#include "qemu/log.h"
 #include "qemu-common.h"
 #include "qemu/timer.h"
 #include "hw/arm/omap.h"
@@ -1439,8 +1440,9 @@ static int omap_dma_sys_read(struct omap_dma_s *s, int offset,
     case 0x480:	/* DMA_PCh0_SR */
     case 0x482:	/* DMA_PCh1_SR */
     case 0x4c0:	/* DMA_PChD_SR_0 */
-        printf("%s: Physical Channel Status Registers not implemented.\n",
-               __func__);
+        qemu_log_mask(LOG_UNIMP,
+                      "%s: Physical Channel Status Registers not implemented\n",
+                      __func__);
         *ret = 0xff;
         break;