kernel-install: check all entry candidates first, then check existence of $pref/loader/entries only once

If we have multiple entries in $ENTRY_TOKEN_SEARCH, and $pref/loader/entries
exists, then previously we would always exit after the first candidate and
ignore the second and later candidates.

Follow-up for 1b43f86893.

src/kernel-install/kernel-install.in

@@ -217,15 +217,15 @@ for pref in $BOOT_ROOT_SEARCH; do
         else
             log_verbose "$pref/$suff not found…"
         fi
-
-        if [ -d "$pref/loader/entries" ]; then
-            [ -z "$BOOT_ROOT" ] && BOOT_ROOT="$pref"
-            log_verbose "$pref/loader/entries exists, using BOOT_ROOT=$BOOT_ROOT"
-            break 2
-        else
-            log_verbose "$pref/loader/entries not found…"
-        fi
     done
+
+    if [ -d "$pref/loader/entries" ]; then
+        [ -z "$BOOT_ROOT" ] && BOOT_ROOT="$pref"
+        log_verbose "$pref/loader/entries exists, using BOOT_ROOT=$BOOT_ROOT"
+        break
+    else
+        log_verbose "$pref/loader/entries not found…"
+    fi
 done
 
 [ -z "$BOOT_ROOT" ] && for pref in "/efi" "/boot/efi"; do