UBUNTU: SAUCE: cpu/hotplug: Fix Documentation/kernel-parameters.txt

BugLink: https://bugs.launchpad.net/bugs/1820872

Add 'nosmt' which was omitted in the original backport.

Fixes: df8ddbcb ("cpu/hotplug: Provide knobs to control SMT")
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

Documentation/kernel-parameters.txt

@@ -2544,7 +2544,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 	nohugeiomap	[KNL,x86] Disable kernel huge I/O mappings.
 
-			[KNL,x86] Disable symmetric multithreading (SMT).
+	nosmt		[KNL,x86] Disable symmetric multithreading (SMT).
 			nosmt=force: Force disable SMT, cannot be undone
 				     via the sysfs control file.