Move the I8257 macro to i8257.h, close to the TYPE_I8257 define.

This will make future conversion to OBJECT_DECLARE* easier.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
Changes v2 -> v3: none

Changes series v1 -> v2: new patch in series v2

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org
---
 include/hw/dma/i8257.h | 2 ++
 hw/dma/i8257.c         | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/hw/dma/i8257.h b/include/hw/dma/i8257.h
index 03e2c166be..ee06371699 100644
--- a/include/hw/dma/i8257.h
+++ b/include/hw/dma/i8257.h
@@ -5,6 +5,8 @@
 #include "exec/ioport.h"
 
 #define TYPE_I8257 "i8257"
+#define I8257(obj) \
+    OBJECT_CHECK(I8257State, (obj), TYPE_I8257)
 
 typedef struct I8257Regs {
     int now[2];
diff --git a/hw/dma/i8257.c b/hw/dma/i8257.c
index db808029b0..de5f696919 100644
--- a/hw/dma/i8257.c
+++ b/hw/dma/i8257.c
@@ -33,8 +33,6 @@
 #include "qemu/log.h"
 #include "trace.h"
 
-#define I8257(obj) \
-    OBJECT_CHECK(I8257State, (obj), TYPE_I8257)
 
 /* #define DEBUG_DMA */
 
-- 
2.26.2