staging: cxt1e1: musycc.c: fixes placement of parentheses

This commit fixes several incorrect placements of parantheses, as
identified by the checkpatch.pl tool.

Signed-off-by: Johan Meiring <johanmeiring@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>