arch/*: Kconfig: fix documentation for NMI watchdog

Changeset 9919cba7 ("watchdog: Update documentation") updated
the documentation, removing the old nmi_watchdog.txt and adding
a file with a new content.

Update Kconfig files accordingly.

Fixes: 9919cba7 ("watchdog: Update documentation")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>

arch/arm/Kconfig

@@ -1302,7 +1302,7 @@ config SMP
 	  will run faster if you say N here.
 
 	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
-	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+	  <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO available at
 	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
 
 	  If you don't know what to do here, say N.

arch/parisc/Kconfig

@@ -275,7 +275,7 @@ config SMP
 	  machines, but will use only one CPU of a multiprocessor machine.
 	  On a uniprocessor machine, the kernel will run faster if you say N.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.

arch/sh/Kconfig

@@ -687,7 +687,7 @@ config SMP
 	  People using multiprocessor machines who say Y here should also say
 	  Y to "Enhanced Real Time Clock Support", below.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.

arch/sparc/Kconfig

@@ -178,7 +178,7 @@ config SMP
 	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
 	  Management" code will be disabled if you say Y here.
 
-	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
+	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
 	  available at <http://www.tldp.org/docs.html#howto>.
 
 	  If you don't know what to do here, say N.