soc/intel/pantherlake: Add early shutdown notification hook

This commit display UX message for low-battery shutdown using
platform_display_early_shutdown_notification().

This commit also enables the HAVE_ESOL_SUPPORT_FOR_LOW_BATTERY_INDICATOR
Kconfig option, which is required for displaying the VGA text message
during early shutdown.

BUG=b:339673254
TEST=Verified low battery boot event logging and controlled shutdown.

Change-Id: I45c0fb07b984fcde6209631612cb8b4a08ac2041
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86476
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jayvik Desai <jayvik@google.com>

src/soc/intel/pantherlake/Kconfig

@@ -22,6 +22,7 @@ config SOC_INTEL_PANTHERLAKE_BASE
 	select FSPS_HAS_ARCH_UPD
 	select GENERIC_GPIO_LIB
 	select HAVE_DEBUG_RAM_SETUP
+	select HAVE_ESOL_SUPPORT_FOR_LOW_BATTERY_INDICATOR if CHROMEOS_ENABLE_ESOL
 	select HAVE_FSP_GOP
 	select HAVE_FSP_LOGO_SUPPORT if RUN_FSP_GOP
 	select HAVE_HYPERTHREADING

src/soc/intel/pantherlake/romstage/fsp_params.c

@@ -289,6 +289,14 @@ static void fill_fspm_vr_config_params(FSP_M_CONFIG *m_cfg,
 		m_cfg->EnableFastVmode[i] = 0;
 }
 
+#if CONFIG(PLATFORM_HAS_EARLY_LOW_BATTERY_INDICATOR)
+void platform_display_early_shutdown_notification(void *arg)
+{
+	FSPM_UPD *mupd = arg;
+	ux_inform_user_of_poweroff_operation("low-battery shutdown", mupd);
+}
+#endif
+
 static void soc_memory_init_params(FSP_M_CONFIG *m_cfg,
 				   const struct soc_intel_pantherlake_config *config)
 {