meta-facebook: bletchley: switch the emmc mount to /mnt/emmc
Internal code has switched over to handle both `/mnt/emmc` or as a
fall-back `/mnt/data`. Move the eMMC mount location to `/mnt/emmc`
and remove the extra symlinks.
Tested: Observed on QEMU the desired mounts.
```
root@bletchley:~# mount | grep "on /mnt"
overlay on /mnt/data type overlay (rw,relatime,lowerdir=/mnt/data,upperdir=/run/mnt-persist/mnt/data-data,workdir=/run/mnt-persist/mnt/data-work,uuid=on)
/dev/mmcblk0 on /mnt/emmc type btrfs (rw,relatime,compress=zstd:3,ssd,discard,noacl,space_cache=v2,subvolid=5,subvol=/)
```
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I1bb20570d2296508247a3f1af63c1812801ea206
diff --git a/meta-facebook/recipes-fb/emmc-init/files/emmc-init.service b/meta-facebook/recipes-fb/emmc-init/files/emmc-init.service
index f093f3d..8367949 100644
--- a/meta-facebook/recipes-fb/emmc-init/files/emmc-init.service
+++ b/meta-facebook/recipes-fb/emmc-init/files/emmc-init.service
@@ -1,6 +1,6 @@
[Unit]
Description=eMMC initialize check
-Before=mnt-data.mount
+Before=mnt-emmc.mount
Requires=dev-mmcblk0.device
After=dev-mmcblk0.device