OCPBUGS-29961: fix baud rate

Author: jldohmann

modules/installation-user-infra-machines-advanced-enabling-serial-console.adoc

@@ -39,7 +39,7 @@ endif::[]
 ----
 +
 <1> The desired secondary console. In this case, the graphical console. Omitting this option will disable the graphical console.
-<2> The desired primary console. In this case the serial console. The `options` field defines the baud rate and other settings. A common value for this field is `11520n8`. If no options are provided, the default kernel value of `9600n8` is used. For more information on the format of this option, see link:https://www.kernel.org/doc/html/latest/admin-guide/serial-console.html[Linux kernel serial console] documentation.
+<2> The desired primary console. In this case the serial console. The `options` field defines the baud rate and other settings. A common value for this field is `115200n8`. If no options are provided, the default kernel value of `9600n8` is used. For more information on the format of this option, see link:https://www.kernel.org/doc/html/latest/admin-guide/serial-console.html[Linux kernel serial console] documentation.
 +
 . Reboot into the installed system.
 +
@@ -52,4 +52,4 @@ To configure a PXE installation, make sure the `coreos.inst.install_dev` kernel
 
 ifeval::["{context}" == "installing-restricted-networks-bare-metal"]
 :!restricted:
-endif::[]
+endif::[]