staging: vt6655: Type encoding info dropped from variable name "qwNextTBTT"

staging: vt6655: Type encoding info dropped from variable name "qwNextTBTT"

variable name "qwTSFOffset" updated like below:

a.type encoding info dropped from name
b.camelcase name replaced by snakecase

Issue found by checkpatch

Signed-off-by: Pavan Bobba <opensource206@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/6b1fe342f7577c46a980cdc1bee0c7f560f05d87.1698730318.git.opensource206@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>