pfSense/pfsense 749dfdbsrc/etc rc.bootup, src/etc/inc pfsense-utils.inc config.lib.inc

Fix the spamming of warnings about ttyv0 not being available on ARM64 devices.

While here, use a more meaningful name for the function.
DeltaFile
+2-2src/etc/inc/pfsense-utils.inc
+2-2src/etc/rc.bootup
+1-1src/etc/inc/config.lib.inc
+1-1src/usr/local/www/diag_backup.php
+1-1src/usr/local/www/system_advanced_admin.php
+7-75 files

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