staging: vt6556: Cleanup indentation on statements

Use tabs instead of spaces in a set of statements and fix lines
over 80 chars. Reported by checkpatch.

Tested by compilation only.

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>