Kernel: Block non-UID-0 profiling completely

Kernel: Block non-UID-0 profiling completely

This is recommended by KSPP, Lynis, and others. Indeed, there is no
legitimate reason why an unprivileged user on IPFire should do any
profiling. Unfortunately, this change never landed in the mainline
kernel, hence a distribution patch is necessary.

The second version of this patch rebases the kernel patch by Jeff
Vander Stoep against Linux 5.15.17 to avoid fuzzying.

Tested-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>