Remove residual blank line at start of MakefileThis is a residual of the $FreeBSD$ removal.MFC After: 3 days (though I'll just run the command on the branches)Sponsored by: Netflix
sys: Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
pwm_backlight: Add regnode_if.h to SRCSIf the kernel config doesn't have this pseudo device it will not be generatedand then the module will fail to compile.Reported by: mjg
Add pwm_backlightDriver for pwm-backlight compatible device.Relnotes: yesSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D26252