early-setup.d/: create generic hook, console-init now dracut only

People building with mkinitcpio still benefit from triggering a screen size
recalculation. Move that to an early hook that's run for all frameworks.

Fixes #706

zfsbootmenu/hooks/early-setup.d/10-generic-efi-init.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# print an "empty" string to the screen to force it to recalculate
+# with out this, EFI frame buffers will possibly have the wrong size
+
+echo -e "\033[0;30m ... \033[0m"

zfsbootmenu/hooks/early-setup.d/10-console-init.sh → zfsbootmenu/hooks/early-setup.d/20-dracut-console-init.sh

@@ -23,9 +23,5 @@ fi
 # There is nothing to do without a valid control_term device
 [ -c "${control_term}" ] || exit 0
 
-# print an "empty" string to the screen to force it to recalculate
-# with out this, EFI frame buffers will possibly have the wrong size
-echo -e "\033[0;30m ... \033[0m"
-
 # Try to initialize the console
 /lib/udev/console_init "${control_term##*/}" >/dev/null 2>&1