The cpu-hotplug.rst documentation is currently orphan and not
included in any manual; move it into the system manual.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
---
 docs/{ => system}/cpu-hotplug.rst | 0
 docs/system/index.rst             | 1 +
 2 files changed, 1 insertion(+)
 rename docs/{ => system}/cpu-hotplug.rst (100%)

diff --git a/docs/cpu-hotplug.rst b/docs/system/cpu-hotplug.rst
similarity index 100%
rename from docs/cpu-hotplug.rst
rename to docs/system/cpu-hotplug.rst
diff --git a/docs/system/index.rst b/docs/system/index.rst
index d0613cd5f72..0f0f6d2e99d 100644
--- a/docs/system/index.rst
+++ b/docs/system/index.rst
@@ -29,6 +29,7 @@ Contents:
    tls
    gdb
    managed-startup
+   cpu-hotplug
    targets
    security
    deprecated
-- 
2.20.1