[MTD] [NOR] Fix incorrect interface code for x16/x32 chips

According to "Common Flash Memory Interface Publication 100" dated December 1,
2001, the interface code for x16/x32 chips is 0x0005, and not 0x0004 used so
far.

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c
index 60e11a0..f651b6e 100644
--- a/drivers/mtd/chips/cfi_probe.c
+++ b/drivers/mtd/chips/cfi_probe.c
@@ -370,27 +370,27 @@
 	printk("Device size: 0x%X bytes (%d MiB)\n", 1 << cfip->DevSize, 1<< (cfip->DevSize - 20));
 	printk("Flash Device Interface description: 0x%4.4X\n", cfip->InterfaceDesc);
 	switch(cfip->InterfaceDesc) {
-	case 0:
+	case CFI_INTERFACE_X8_ASYNC:
 		printk("  - x8-only asynchronous interface\n");
 		break;
 
-	case 1:
+	case CFI_INTERFACE_X16_ASYNC:
 		printk("  - x16-only asynchronous interface\n");
 		break;
 
-	case 2:
+	case CFI_INTERFACE_X8_BY_X16_ASYNC:
 		printk("  - supports x8 and x16 via BYTE# with asynchronous interface\n");
 		break;
 
-	case 3:
+	case CFI_INTERFACE_X32_ASYNC:
 		printk("  - x32-only asynchronous interface\n");
 		break;
 
-	case 4:
+	case CFI_INTERFACE_X16_BY_X32_ASYNC:
 		printk("  - supports x16 and x32 via Word# with asynchronous interface\n");
 		break;
 
-	case 65535:
+	case CFI_INTERFACE_NOT_ALLOWED:
 		printk("  - Not Allowed / Reserved\n");
 		break;