pkg/mount: also create /dev/disk/by-uuid links
pkg/mount: also create /dev/disk/by-uuid links

Some software (such as cri-containerd and kubelet) rely on the presence of
these links, which are usually created by udev.

Inspired by https://github.com/slashbeast/better-initramfs/blob/74b145b5c7fe6c4027fd64abeb4e129ba7a85c3f/sourceroot/functions.sh#L93...L124
but rewritten in go.

Signed-off-by: Ian Campbell <a8db091655a7f47ecb9c39a2d278e9662e440dc0@docker.com>

YuPengZTE/linuxkit,mor1/linuxkit,zx2c4/linuxkit,mor1/linuxkit,davefreitag/linuxkit,thebsdbox/linuxkit,yankcrime/linuxkit,furious-luke/linuxkit,mor1/linuxkit,mor1/linuxkit,thebsdbox/linuxkit,konstruktoid/linuxkit,konstruktoid/linuxkit,konstruktoid/linuxkit,djs55/linuxkit,furious-luke/linuxkit,furious-luke/linuxkit,eyz/linuxkit,mor1/linuxkit,yankcrime/linuxkit,linuxkit/linuxkit,ndauten/linuxkit,ndauten/linuxkit,t-koulouris/linuxkit,furious-luke/linuxkit,t-koulouris/linuxkit,zx2c4/linuxkit,deitch/linuxkit,YuPengZTE/linuxkit,eyz/linuxkit,konstruktoid/linuxkit,yankcrime/linuxkit,rn/linuxkit,yankcrime/linuxkit,justincormack/linuxkit,ndauten/linuxkit,JohnnyLeone/linuxkit,davefreitag/linuxkit,thebsdbox/linuxkit,justincormack/linuxkit,rn/linuxkit,t-koulouris/linuxkit,YuPengZTE/linuxkit,justincormack/linuxkit,linuxkit/linuxkit,JohnnyLeone/linuxkit,djs55/linuxkit,konstruktoid/linuxkit,zx2c4/linuxkit,thebsdbox/linuxkit,justincormack/linuxkit,konstruktoid/linuxkit,t-koulouris/linuxkit,davefreitag/linuxkit,t-koulouris/linuxkit,JohnnyLeone/linuxkit,JohnnyLeone/linuxkit,thebsdbox/linuxkit,thebsdbox/linuxkit,deitch/linuxkit,rn/linuxkit,ndauten/linuxkit,furious-luke/linuxkit,deitch/linuxkit,yankcrime/linuxkit,zx2c4/linuxkit,davefreitag/linuxkit,linuxkit/linuxkit,YuPengZTE/linuxkit,yankcrime/linuxkit,linuxkit/linuxkit,davefreitag/linuxkit,justincormack/linuxkit,djs55/linuxkit,ndauten/linuxkit,rn/linuxkit,deitch/linuxkit,eyz/linuxkit,linuxkit/linuxkit,eyz/linuxkit,justincormack/linuxkit,rn/linuxkit,ndauten/linuxkit,YuPengZTE/linuxkit,deitch/linuxkit,YuPengZTE/linuxkit,eyz/linuxkit,JohnnyLeone/linuxkit,djs55/linuxkit,zx2c4/linuxkit,djs55/linuxkit,eyz/linuxkit