ks: detect target disk dynamically, drop hardcoded ignoredisk

basic_pre_script.inc already identifies the disk holding OEMDRV
($SYSDRIVE). Write its short name to /tmp/disk-include.cfg after the
GPT check so both cinnamon and KDE profiles can %include it instead of
the hardcoded 'ignoredisk --only-use=sda,nvme0n1' that fails on
systems without an NVMe drive (or without sda).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ks_base_profiles/basic_pre_script.inc

@@ -65,6 +65,9 @@ else
     echo "The Drive ${SYSDRIVE} contains a GPT."
 fi
 
+# Write the target disk for %include in the kickstart main section
+echo "ignoredisk --only-use=${SYSDRIVE:5}" > /tmp/disk-include.cfg
+
 OEMDRVPARTSHORT=${OEMDRVPART:5}
 ALLPARTS=$(lsblk -n -l -o NAME "${SYSDRIVE}" -Q 'TYPE=="part"')
 REMPARTS=$(echo "$ALLPARTS" | grep -v "${OEMDRVPARTSHORT}")