Draft: docs: Add qemuarm64 and qemuarm to index of devices

Add qemuarm64 and qemuarm to index of devices in hardware-support docs.

Related-to docs#126 (closed)

Signed-off-by: Grzegorz Gwóźdź grzegorz.gwozdz@huawei.com

docs/hardware-support/virtual-boards/index.rst

@@ -14,3 +14,5 @@ This section details the support for virtual targets in |main_project_name|.
   
    qemux86-64
    qemux86
+   qemuarm64
+   qemuarm   

[Kristijonas Čiulčinskas]

Maybe the items should be kept in order - if the first qemux86 ends with additional 64, the qemuarm64 should come before qemuarm.