ChromeOS: Fix Kconfig dependencies

Add CHROMEOS dependencies to selects for the following Kconfig
symbols:

CHROMEOS_RAMOOPS_DYNAMIC
CHROMEOS_RAMOOPS_NON_ACPI
CHROMEOS_VBNV_CMOS
CHROMEOS_VBNV_EC
CHROMEOS_VBNV_FLASH
EC_SOFTWARE_SYNC
LID_SWITCH
RETURN_FROM_VERSTAGE
SEPARATE_VERSTAGE
VBOOT_DISABLE_DEV_ON_RECOVERY
VBOOT_EC_SLOW_UPDATE
VBOOT_OPROM_MATTERS
VBOOT_STARTS_IN_BOOTBLOCK
WIPEOUT_SUPPORTED

This gets rid of these sorts of Kconfig errors:
warning: BOARD_SPECIFIC_OPTIONS selects CHROMEOS_VBNV_EC which has
unmet direct dependencies (MAINBOARD_HAS_CHROMEOS && CHROMEOS)

Note: These two boards would never actually have CHROMEOS enabled:
intel/emeraldlake2 has MAINBOARD_HAS_CHROMEOS commented out
google/peach_pit doesn't have MAINBOARD_HAS_CHROMEOS

Change-Id: I51b4ee326f082c6a656a813ee5772e9c34f5c343
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: http://review.coreboot.org/11272
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/samsung/lumpy/Kconfig

@@ -20,6 +20,8 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select DRIVERS_GENERIC_IOAPIC
 	select INTEL_INT15
 	select HAVE_MRC
+
+config CHROMEOS
 	select CHROMEOS_VBNV_CMOS
 
 config MAINBOARD_DIR

src/mainboard/samsung/stumpy/Kconfig

@@ -12,14 +12,16 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SUPERIO_ITE_IT8772F
-	select PHYSICAL_REC_SWITCH
 # LPC47N207 selected for external LPC card
 # not on board, should be made selectable.
 	select SUPERIO_SMSC_LPC47N207
 	select HAVE_MRC
+	select INTEL_INT15
+
+config CHROMEOS
+	select PHYSICAL_REC_SWITCH
 	select CHROMEOS_VBNV_CMOS
 
-	select INTEL_INT15
 config MAINBOARD_DIR
 	string
 	default samsung/stumpy