5.14.y-stable: Missing sound fixes from 5.15

[Takashi Iwai <tiwai@xxxxxxx>]

Hi Greg,

could you cherry-pick the following three commits to 5.14.y tree?
The Cc-to-stable was missing on those, although they should have been
picked up.

cbea6e5a7772b7a5b80baa8f98fd77853487fd2a
    ALSA: pcm: Check mmap capability of runtime dma buffer at first
0899a7a23047f106c06888769d6cd6ff43d7395f
    ALSA: pci: rme: Set up buffer type properly
4d9e9153f1c64d91a125c6967bc0bfb0bb653ea0
    ALSA: pci: cs46xx: Fix set up buffer type properly

They are needed only for 5.14.y, not for older versions.

The relevant bug report is found at:
  https://bugzilla.kernel.org/show_bug.cgi?id=214947


Thanks!

Takashi