mfd/tc35892: rename tc35892 header to tc3589x

Rename the header file to include further variants within
the same mfd core driver

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/drivers/gpio/tc35892-gpio.c b/drivers/gpio/tc35892-gpio.c
index 7e10c93..027b857 100644
--- a/drivers/gpio/tc35892-gpio.c
+++ b/drivers/gpio/tc35892-gpio.c
@@ -13,7 +13,7 @@
 #include <linux/gpio.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/mfd/tc35892.h>
+#include <linux/mfd/tc3589x.h>
 
 /*
  * These registers are modified under the irq bus lock and cached to avoid