[LEDE-DEV] Add ARC platforms to platforms wiki

[Alexey Brodkin]

Hello,

I'm wondering if there's a chance to add information about ARC
platforms in the Wiki here https://dev.openwrt.org/wiki/platforms?

I think something like this will work
==================================================================================================
Target name	Platform	               Architecture	Endianness	Developer(s)	Known
Issues/Notes
--------------------------------------------------------------------------------------------------
arc770          Synopsys DesignWare ARC 770D   ARC              little          abrodkin        arc770
archs38         Synopsys DesignWare ARC HS38   ARC              little          abrodkin        archs38
==================================================================================================

Regards,
Alexey