staging: tidspbridge: set12 remove hungarian from structs

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

Original:               Replacement:
dw_buf_size             buf_size
dw_bytes                bytes
pattr                   attr
pdw_arg                 arg
ph_cmm_mgr              cmm_mgr
ph_event                event
ph_node                 node
ph_stream               stream
pmask                   mask
pp_argv                 argv
pp_buf_va               buf_va
pstatus                 status
ul_flags                flags
ul_seg_id               seg_id
usize                   size

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>