[DistroKit] [PATCH 6/7] doc: hardware: reduce clutter in sub-toctrees

[Roland Hieber <rhi@pengutronix.de>]

All those hardware sections have roughly the same sub-sections, reduce
it to only the board names:

    2.1.1.1. QEmu
    2.1.1.2. Beaglebone White
        2.1.1.2.1. Boot Media
        2.1.1.2.2. Serial Console
    2.1.1.3. Beaglebone Black
        2.1.1.3.1. Boot Media
        2.1.1.3.2. Serial Console
    2.1.1.4. Boundary Devices Nitrogen6X
        2.1.1.4.1. Bootloader
        2.1.1.4.2. Boot Media
        2.1.1.4.3. Serial Console
    2.1.1.5. RIoT-Board
        2.1.1.5.1. Boot Media
        2.1.1.5.2. Serial Console
    2.1.1.6. Raspberry Pi 2
        2.1.1.6.1. Boot Media
        2.1.1.6.2. Serial Console
    2.1.1.7. Raspberry Pi 3
        2.1.1.7.1. Boot Media
        2.1.1.7.2. Serial Console
    2.1.1.8. Udoo Neo
        2.1.1.8.1. Boot Media
        2.1.1.8.2. Serial Console

Signed-off-by: Roland Hieber <rhi@pengutronix.de>
---
 doc/hardware.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/hardware.rst b/doc/hardware.rst
index 98688b9d32a3..2143b6c0120d 100644
--- a/doc/hardware.rst
+++ b/doc/hardware.rst
@@ -41,6 +41,7 @@ DistroKit supports various boards based on the ARMv7-A architecture.
 For the following boards there is separate documentation:
 
 .. toctree::
+   :maxdepth: 1
 
    hardware_v7a_qemu
    hardware_v7a_beaglebone_white
@@ -102,6 +103,7 @@ Hardware for the v8a Platform
 Currently DistroKit only supports a single board; the Marvell espressobin.
 
 .. toctree::
+   :maxdepth: 1
 
    hardware_v8a_espressobin
 
@@ -145,5 +147,6 @@ Hardware for the rpi Platform
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. toctree::
+   :maxdepth: 1
 
    hardware_rpi_raspi1
-- 
2.24.0


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