ncpfs: remove redundant cast of struct ncp_inode_info

Casting a value returned by memory an allocation function is
not required and can be removed. Also add in a newline after before
the first statement. Code clean up as suggested by coccinelle.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>