[PATCH] Documentation: imx8mq-evk: warn for EVKB variant

[Rouven Czerwinski]

There is another EVKB variant of the MCIMX8M-EVK, which is currently not
compatible with barebox. Add a warning to the documentation.

Signed-off-by: Rouven Czerwinski <rouven.czerwinski at linaro.org>
---
 Documentation/boards/imx/nxp-imx8mq-evk.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/boards/imx/nxp-imx8mq-evk.rst b/Documentation/boards/imx/nxp-imx8mq-evk.rst
index d98f94ac61..a15c535593 100644
--- a/Documentation/boards/imx/nxp-imx8mq-evk.rst
+++ b/Documentation/boards/imx/nxp-imx8mq-evk.rst
@@ -8,6 +8,9 @@ Board comes with:
 
 Not including booting via serial, the device can boot from either SD or eMMC.
 
+.. warning:: Barebox is currently not compatible with the MCIMX8M-EVK**B**
+   variant with 4GiB of RAM.
+
 Downloading DDR PHY and HDMI/eDP Firmware
 -----------------------------------------
 
-- 
2.51.2