staging: ozwpan: Reduced size of oz_evtlist structure.

This structure is used in an ioctl definition and was causing the
64-bit PowerPC build to fail. The size of the array in the structure
has been reduced to fix this.
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ozwpan/ozeventdef.h

@@ -37,7 +37,7 @@ struct oz_event {
 	unsigned ctx4;
 };
 
-#define OZ_EVT_LIST_SZ	256
+#define OZ_EVT_LIST_SZ	64
 struct oz_evtlist {
 	int count;
 	int missed;