rename TANBAC TB0219 config

Rename config for TANBAC TB0219 GPIO support to something more appropriate.

Fixes this:

drivers/char/Kconfig:906:warning: type of 'TANBAC_TB0219' redefined from 'boolean' to 'tristate'
drivers/char/Kconfig:907:warning: choice values currently only support a single
prompt

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index ae8567c..2f56ecc 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -91,7 +91,7 @@
 obj-$(CONFIG_NSC_GPIO)		+= nsc_gpio.o
 obj-$(CONFIG_CS5535_GPIO)	+= cs5535_gpio.o
 obj-$(CONFIG_GPIO_VR41XX)	+= vr41xx_giu.o
-obj-$(CONFIG_TANBAC_TB0219)	+= tb0219.o
+obj-$(CONFIG_GPIO_TB0219)	+= tb0219.o
 obj-$(CONFIG_TELCLOCK)		+= tlclk.o
 
 obj-$(CONFIG_WATCHDOG)		+= watchdog/