In sys/compat/ndis/subr_ntoskrnl.c, change the RtlFillMemory function

definition from K&R to ANSI, to avoid a clang warning about the uint8_t
parameter being promoted to int, which is not compatible with the type
declared in the earlier prototype.

MFC after:	1 week

sys/compat/ndis/subr_ntoskrnl.c

@@ -3016,10 +3016,7 @@ RtlSecureZeroMemory(dst, len)
 }
 
 static void
-RtlFillMemory(dst, len, c)
-	void			*dst;
-	size_t			len;
-	uint8_t			c;
+RtlFillMemory(void *dst, size_t len, uint8_t c)
 {
 	memset(dst, c, len);
 }