Fix SPL handling when PCDISPLAY_SOFTCURSOR is enabled.
Fix SPL handling when PCDISPLAY_SOFTCURSOR is enabled.

Discovered, narrowed down, and tested by jmc@.
"definitely commit that" deraadt@, ok miod@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars