mfd: lpc_ich: Use gpio-ich driver for 8-series and 9-series Intel PCH devices

The Intel 8-series and 9-series PCH devices, described by the descriptors
LPC_LPT and LPC_9S although codenamed 'lynxpoint' do not use the same GPIO
register layout which is used by the gpio-lynxpoint driver.  They use the
same ICH_V5_GPIO layout as the gpio-ich driver.

See:
http://www.intel.com/content/www/us/en/chipsets/8-series-chipset-pch-datasheet.html
http://www.intel.com/content/www/us/en/chipsets/9-series-chipset-pch-datasheet.html

The devices described by "Mobile 4th Generation Intel Core Processor
Family I/O" manual use the gpio-lynxpoint driver and are described by the
LPC_LPT_LP descriptor.

See:
http://www.intel.com/content/www/us/en/processors/core/4th-gen-core-family-mobile-i-o-datasheet.htmlSigned-off-by: NDan Gora <dg@adax.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

drivers/mfd/lpc_ich.c

@@ -493,6 +493,7 @@ static struct lpc_ich_info lpc_chipset_info[] = {
 	[LPC_LPT] = {
 		.name = "Lynx Point",
 		.iTCO_version = 2,
+		.gpio_version = ICH_V5_GPIO,
 	},
 	[LPC_LPT_LP] = {
 		.name = "Lynx Point_LP",
@@ -530,6 +531,7 @@ static struct lpc_ich_info lpc_chipset_info[] = {
 	[LPC_9S] = {
 		.name = "9 Series",
 		.iTCO_version = 2,
+		.gpio_version = ICH_V5_GPIO,
 	},
 };