staging: vt6655: fix coding style warnings

a) replace spaces with tabs
b) put the opening brace of get_chip_name below it

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Acked-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>