tests: grub_cmd_cryptomount should hard error when pre-requisites are not met

Tests should be SKIP'd only when they do not apply to a particular target.
Hard errors are for when the test should run but can not be setup properly.

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

tests/grub_cmd_cryptomount.in

@@ -22,17 +22,17 @@ fi
 
 if [ "$EUID" != 0 ] ; then
    echo "not root; cannot test cryptomount."
-   exit 77
+   exit 99
 fi
 
 if ! which cryptsetup >/dev/null 2>&1; then
    echo "cryptsetup not installed; cannot test cryptomount."
-   exit 77
+   exit 99
 fi
 
 if ! which mkfs.vfat >/dev/null 2>&1; then
    echo "mkfs.vfat not installed; cannot test cryptomount."
-   exit 77
+   exit 99
 fi
 
 COMMON_OPTS='${V:+--debug=$V} --cs-opts="--pbkdf-force-iterations 1000"'