usb_hub: fix power cycling logic

When power cycling the hub ports, a misbehaving port will prevent all ports
from being powered on because we quit at the first sign of trouble.

Skip problematic ports instead of failing the entire power on.

Cc: Marek Vasut <marex@denx.de>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

common/usb_hub.c

diff --git a/common/usb_hub.c b/common/usb_hub.c
index 754d436..a11b401 100644
--- a/common/usb_hub.c
+++ b/common/usb_hub.c
@@ -110,7 +110,7 @@
 		ret = usb_get_port_status(dev, i + 1, portsts);
 		if (ret < 0) {
 			debug("port %d: get_port_status failed\n", i + 1);
-			return;
+			continue;
 		}
 
 		/*
@@ -125,7 +125,7 @@
 		portstatus = le16_to_cpu(portsts->wPortStatus);
 		if (portstatus & (USB_PORT_STAT_POWER << 1)) {
 			debug("port %d: Port power change failed\n", i + 1);
-			return;
+			continue;
 		}
 	}