Revert "usb: roles: set switch registered flag early on"

This reverts commit 6a902573 which is
commit 634775a7 upstream.

The commit it "fixes" was already reverted due to abi breakages, so this
too needs to be reverted in order to fix the build error it causes.

Bug: 161946584
Change-Id: I4a4c04ca1b319bc87874e7827287a937b2d7f286
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>