When the Engenius EWS-2910P was added, only v1 was known. Move the
common parts to a dtsi, and split up the support to acccount for the
hardware version.
On v3, for example, the root partition uses a different uImage magic.
Add a "engenius,ews2910p-v1" compatible, while leaving the legacy
"engenius,ews2910p" to also mean v1.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/15217
Signed-off-by: Robert Marko <robimarko@gmail.com>
e5625fb448