staging: tidspbridge: set4 remove hungarian from structs

hungarian notation will be removed from the elements inside
structures, the next varibles will be renamed:

Original:                Replacement:
pfn_brd_set_state        brd_set_state
pfn_brd_start            brd_start
pfn_brd_status           brd_status
pfn_brd_stop             brd_stop
pfn_brd_write            brd_write
pfn_chnl_add_io_req      chnl_add_io_req
pfn_chnl_cancel_io       chnl_cancel_io
pfn_chnl_close           chnl_close
pfn_chnl_create          chnl_create
pfn_chnl_destroy         chnl_destroy
pfn_chnl_flush_io        chnl_flush_io
pfn_chnl_get_info        chnl_get_info
pfn_chnl_get_ioc         chnl_get_ioc
pfn_chnl_get_mgr_info    chnl_get_mgr_info
pfn_chnl_idle            chnl_idle
pfn_chnl_open            chnl_open
pfn_chnl_register_notify chnl_register_notify
pfn_create		 create
pfn_delete		 delete
pfn_dev_cntrl		 dev_cntrl

Signed-off-by: Rene Sapiens <rene.sapiens@ti.com>
Signed-off-by: Armando Uribe <x0095078@ti.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>