usb: roles: Introduce stubs for the exiting functions in role.h

This patch adds stubs for the exiting functions while
CONFIG_USB_ROLE_SWITCH does not enabled.

Cc: Greg Kroah-Hartman <[email protected]>
Cc: Heikki Krogerus <[email protected]>
Cc: Hans de Goede <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: John Stultz <[email protected]>
Reviewed-by: Heikki Krogerus <[email protected]>
Signed-off-by: Yu Chen <[email protected]>
Signed-off-by: Chunfeng Yun <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions