drivers: bus: imx-weim: Add support for i.MX1/21/25/27/31/35/50/51/53

This patch adds WEIM support for all i.MX CPUs supported by the kernel.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --cc Documentation/devicetree/bindings/bus/imx-weim.txt
Simple merge

diff --cc drivers/bus/Kconfig
Simple merge

diff --cc drivers/bus/imx-weim.c
Simple merge