Added mime type and recognition rule for SoundFonts
SoundFont: Fix recognition rule
kernel/arch: remove leftover debug message

Polite fault handlers are nice, but we like the silent ones even more.

Signed-off-by: Paweł Dziepak <pdziepak@quarnos.org>
kernel: pagecache: provided buffers are not always in user memory

Source or destination buffers passed to pagecache functions may belong
to kernel memory (e.g. when the caller is packagefs). Because of that
we should tell vm_memcpy_{from, to}_physical() truth, not assume that all
buffers are in user memory. That's important because user memory page fault
handlers cannot be nested and these functions may be used while handling
a page fault.

With high probability fixes #11246.

Signed-off-by: Paweł Dziepak <pdziepak@quarnos.org>