staging: vchiq: Replace function typedefs with equivalent declaration

Replace function typedefs with the equivalent declarations to better
align with the linux kenel coding style

The following typedefs were changed:
*  VCHIQ_CONNECTED_CALLBACK_T
*  vchiq_userdata_term

Signed-off-by: Ojaswin Mujoo <ojaswin98@gmail.com>
Link: https://lore.kernel.org/r/a8e4e0457b5fcc88c7f297f9d669dfb7e7d91ed5.1631366317.git.ojaswin98@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>