ARM kprobes: let's enable it

Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index cb12ae1..53a6389 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -141,6 +141,7 @@
 - ppc64
 - ia64 (Does not support probes on instruction slot1.)
 - sparc64 (Return probes not yet implemented.)
+- arm
 
 3. Configuring Kprobes