mb/google/brya: Enable EC

Perform EC initialization in bootblock and ramstages. Add associated
ACPI configuration.

BUG=b:174266035
TEST=Build Test

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ie1305706134ca7cc58b8a9941231d1ee14f80949
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48114
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/google/brya/Kconfig b/src/mainboard/google/brya/Kconfig
index f955b64..2989621 100644
--- a/src/mainboard/google/brya/Kconfig
+++ b/src/mainboard/google/brya/Kconfig
@@ -1,6 +1,8 @@
 config BOARD_GOOGLE_BASEBOARD_BRYA
 	def_bool n
 	select BOARD_ROMSIZE_KB_32768
+	select EC_GOOGLE_CHROMEEC
+	select EC_GOOGLE_CHROMEEC_ESPI
 	select HAVE_ACPI_RESUME
 	select HAVE_ACPI_TABLES
 	select INTEL_LPSS_UART_FOR_CONSOLE
@@ -16,6 +18,8 @@
 config CHROMEOS
 	bool
 	default y
+	select EC_GOOGLE_CHROMEEC_SWITCHES
+	select GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC
 	select VBOOT_LID_SWITCH
 
 config DEVICETREE