brcm47xx: update usb driver

Add workarround for BCM5357 and BCM4749.

This patch contains the following fixes from George Kashperko:
* separate subroutines for controller initialization workarounds -
   following CodingStyle recommendations;
* __devinit __devexit __devinitconst annotations for CONFIG_HOTPLUG;
* fix leak in ssb_hcd_create_pdev/bcma_hcd_create_pdev - as hci_res being
   kmalloc'ed is never freed anywhere while platform_device_add_resources
   will kmemdup resources right away;
* fix compilation error in ssb_hcd_resume - it will fail as soon as
   CONFIG_PM is selected.

SVN-Revision: 29734