sys: Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
bcm5874: Add opt_usb.h for module dependencySponsored by: Netflix
bcm5974: wsp(4) driver version with HID attachment.MFC after: 2 monthTested by: Greg V (Type 4 touchpads)