mb/google/myst: Enable elog

Enable ELOG for Myst.

BUG=b:275938975
TEST=builds

Change-Id: I214e2dbaa3bc40c3f4ca68c8ee4b1398446d7090
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74282
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

src/mainboard/google/myst/Kconfig

@@ -11,6 +11,8 @@ config BOARD_SPECIFIC_OPTIONS
 	select BOARD_ROMSIZE_KB_16384
 	select EC_GOOGLE_CHROMEEC
 	select EC_GOOGLE_CHROMEEC_ESPI
+	select ELOG
+	select ELOG_GSMI
 	select FW_CONFIG
 	select FW_CONFIG_SOURCE_CHROMEEC_CBI
 	select MAINBOARD_HAS_CHROMEOS