remove warning: implicit declaration of function close

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5843 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/accelerants/matrox/InitAccelerant.c

@@ -10,6 +10,7 @@
 #define MODULE_BIT 0x00800000
 
 #include <string.h>
+#include <unistd.h>
 #include "acc_std.h"
 
 /* defined in ProposeDisplayMode.c */

src/add-ons/accelerants/neomagic/InitAccelerant.c

@@ -10,6 +10,7 @@
 #define MODULE_BIT 0x00800000
 
 #include <string.h>
+#include <unistd.h>
 #include "acc_std.h"
 
 /* defined in ProposeDisplayMode.c */

src/add-ons/accelerants/nvidia/InitAccelerant.c

@@ -10,6 +10,7 @@
 #define MODULE_BIT 0x00800000
 
 #include <string.h>
+#include <unistd.h>
 #include "acc_std.h"
 
 /* defined in ProposeDisplayMode.c */