staging: ti dspbridge: Rename words with camel case

The intention of this patch is to rename the remaining variables with camel
case. Variables will be renamed avoiding camel case and Hungarian notation.
The words to be renamed in this patch are:
========================================
puLen to len
pulEntry to entry_pt
pulFxnAddr to fxn_addr
pulId to chan_id
pulSegId to sgmt_id
pVaBuf to va_buf
pVirtualAddress to virtual_address
pwMbVal to mbx_val
pWord to word
pXlatorAttrs to xlator_attrs
registerFxn to register_fxn
rootPersistent to root_prstnt
sectionData to section_data
sectionInfo to section_info
sectionName to section_name
sectName to sec_name
========================================

Signed-off-by: Rene Sapiens <rene.sapiens@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>