soc: select generic gpio lib on (almost) all non-x86 SOCs

BOARD_ID functionality is not what requires the GPIO lib,
but it is the mainboard specific implementations that do.
The option essentially says whether the SoC provides
<soc/gpio.h> (with the interface required by the common
GPIO code). Right now, x86 and Samsung's Exynos SOCs
don't have support for this interface.

So this should be selected by the SOC, not by
BOARD_ID_SUPPORT.

Signed-off-by: Stefan Reinauer <reinauer@chromium.org>

BUG=none
BRANCH=none
TEST=emerge-storm coreboot still successfully compiled an image

Change-Id: I0ce2bd7ce023f22791d31a6245833b61135504b3
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0dd4dea521372194eedf11b077d95fd3b15ad9f7
Original-Change-Id: I3dea6c2fb42a23fcb9d384c3bbfa7fc8e217be2d
Original-Reviewed-on: https://chromium-review.googlesource.com/262743
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Tested-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/9899
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/soc/broadcom/cygnus/Kconfig b/src/soc/broadcom/cygnus/Kconfig
index 3e66688..468f2ef 100644
--- a/src/soc/broadcom/cygnus/Kconfig
+++ b/src/soc/broadcom/cygnus/Kconfig
@@ -34,6 +34,7 @@
 	select HAVE_UART_SPECIAL
 	select HAS_PRECBMEM_TIMESTAMP_REGION
 	select RETURN_FROM_VERSTAGE
+	select GENERIC_GPIO_LIB
 
 if SOC_BROADCOM_CYGNUS