drivers: staging: vt6655: replace CamelCase names on function s_uGetRTSCTSRsvTime

Replace function and variables name from CamelCase style to snake_case style.
Remove Hungarian notation.

Signed-off-by: Rodolfo C. Villordo <rodolfovillordo@gmail.com>
Link: https://lore.kernel.org/r/20200624100256.GA17118@ip-172-31-24-31.ec2.internal


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