Change in coreboot[master]: herobrine: Add support for USB initialization

[Ravi kumar (Code Review)]

Attention is currently required from: Sandeep Maheswaram.
Hello Sandeep Maheswaram,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/56093

to review the following change.

Change subject: herobrine: Add support for USB initialization
......................................................................

herobrine: Add support for USB initialization

Initializing USB controller driver.

BUG=b:182963902
TEST=Validated USB enumeration on qcom sc7280 development board

Signed-off-by: Sandeep Maheswaram 
Change-Id: Ic378352a97e4f3ed89089f1f7545f8ebb172b1f2
---
M src/mainboard/google/herobrine/mainboard.c
1 file changed, 10 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/93/56093/1

diff --git a/src/mainboard/google/herobrine/mainboard.c b/src/mainboard/google/herobrine/mainboard.c
index 82bf28e..d6109d9 100644
--- a/src/mainboard/google/herobrine/mainboard.c
+++ b/src/mainboard/google/herobrine/mainboard.c
@@ -10,6 +10,8 @@
 #include <soc/qup_se_handlers_common.h>
 #include <soc/qcom_qup_se.h>
 #include <soc/pcie.h>
+#include <soc/usb/usb_common.h>
+#include <delay.h>

static void setup_pcie(void)
 {
@@ -35,6 +37,13 @@
    setup_pcie_host();
 }

+static void setup_usb(void)
+{
+	reset_usb0();
+	mdelay(2);
+	setup_usb_host0();
+}
+
 static void mainboard_init(struct device *dev)
 {
    /* Configure clock for eMMC */
@@ -60,6 +69,7 @@

/* Set up PCIe in RC mode */
    setup_pcie();
+	setup_usb();
 }

static void mainboard_enable(struct device *dev)