mb/google/bluey/quartz: Adjust PS8820 init sequence

List of changes:
- Increase the delay between romstage and ramstage GPIO init sequence.
- Delay the USB host initialization to meet the timing requirements.

BUG=b:475214332
TEST=Verify USB 3.0 storage key detection on Google/Quartz.

Change-Id: Ib6044b1e65fe0fe2fde5b688a9491d6e3fc75727
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90758
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/bluey/mainboard.c

@@ -2,6 +2,7 @@
 
 #include <boot/coreboot_tables.h>
 #include <bootmode.h>
+#include <bootstate.h>
 #include <cbmem.h>
 #include <commonlib/bsd/cbmem_id.h>
 #include <commonlib/coreboot_tables.h>
@@ -93,9 +94,19 @@ static void setup_usb(void)
 	setup_usb_typec();
 
 	enable_usb_camera();
+}
+
+static void setup_usb_late(void *unused)
+{
+	/* Skip USB initialization if boot mode is "low-battery" or "off-mode charging"*/
+	if (is_low_power_boot())
+		return;
+
 	setup_usb_host0();
 }
 
+BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, setup_usb_late, NULL);
+
 void lb_add_boot_mode(struct lb_header *header)
 {
 	if (!CONFIG(EC_GOOGLE_CHROMEEC))

src/mainboard/google/bluey/romstage.c

@@ -101,6 +101,9 @@ static void early_setup_usb(void)
 
 void platform_romstage_main(void)
 {
+	/* Setup early USB related config */
+	early_setup_usb();
+
 	/* Watchdog must be checked first to avoid erasing watchdog info later. */
 	check_wdog();
 
@@ -120,9 +123,6 @@ void platform_romstage_main(void)
 
 	qclib_rerun();
 
-	/* Setup early USB related config */
-	early_setup_usb();
-
 	/*
 	 * Enable this power rail now for FPMCU stability prior to
 	 * its reset being deasserted in ramstage. This applies