soc/intel/.../Kconfig: Move GPIO debug option into debug menu

Rename DEBUG_SOC_COMMON_BLOCK_GPIO to DEBUG_GPIO and move it into the
Debugging menu.

Change-Id: I737d0ee7fb5423b6d16d611a144d43fd3f168a2c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/29678
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/Kconfig

@@ -693,6 +693,13 @@ config FATAL_ASSERTS
 	help
 	  If enabled, coreboot will call hlt() on a BUG() or failed ASSERT().
 
+config HAVE_DEBUG_GPIO
+	bool
+
+config DEBUG_GPIO
+	bool "Output verbose GPIO debug messages"
+	depends on HAVE_DEBUG_GPIO
+
 config DEBUG_CBFS
 	bool "Output verbose CBFS debug messages"
 	default n