ide: make ide_hwifs[] static

Move ide_hwifs[] from ide.c to ide-probe.c and make it static.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 592d424..97dda05 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -39,6 +39,8 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
+static ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
+
 /**
  *	generic_id		-	add a generic drive id
  *	@drive:	drive to make an ID block for