Give up on waiting for disks

Some profiles may have all disk support suppressed through blacklist until %pre comes
along to fix it.  This avoids /dev/disk ever existing.

Wait up until 10 seconds before giving up. This gives disk subsystem a fair chance to
speed up and avoid a wait, with a fallback worst case of 10 seconds

confluent_osdeploy/el8/initramfs/usr/lib/dracut/hooks/pre-trigger/01-confluent.sh

@@ -38,8 +38,10 @@ umask 0077
 mkdir -p /etc/confluent
 echo -n > /etc/confluent/confluent.info
 umask $oum
-while [ ! -e /dev/disk ]; do
+TRIES=5
+while [ ! -e /dev/disk ] && [ $TRIES -gt 0 ]; do
     sleep 2
+    TRIES=$((TRIES - 1))
 done
 if [ -e /dev/disk/by-label/CNFLNT_IDNT ]; then
     tmnt=/tmp/idntmnt