pc-bios: Update the s390 bios images with the pxelinux.cfg loadparm changes

This new s390-ccw.img binary contains the addition of the loadparm
feature to the pxelinux.cfg network booting code.

Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/pc-bios/s390-ccw.img b/pc-bios/s390-ccw.img
index 47240f0..ff60978 100644
--- a/pc-bios/s390-ccw.img
+++ b/pc-bios/s390-ccw.img
Binary files differ