[FS#112] Kernel: SysRq spams on boot since kernel 4.4.19

[LEDE Bugs]

The following task has a new comment added:

FS#112 - Kernel: SysRq spams on boot since kernel 4.4.19
User who did this - Karl Palsson (karlp)

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This is something that should be included in the humamnized release notes please.  While I very much appreciate the desire to turn off sysrq on (some!) serial ports, this is definitely a behaviour change for anyone using a serial ports as an actual console.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=112#comment634