reboot parameter in Documentation/kernel-parameters.txt

Documentation fix for the arm and arm26 architectures,
in which the reboot kernel parameter is set in arch/*/kernel/process.c

Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 456d18b..12b3b24 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1368,7 +1368,7 @@
 
 	reboot=		[BUGS=IA-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
 			Format: <reboot_mode>[,<reboot_mode2>[,...]]
-			See arch/*/kernel/reboot.c.
+			See arch/*/kernel/reboot.c or arch/*/kernel/process.c			
 
 	reserve=	[KNL,BUGS] Force the kernel to ignore some iomem area