simplify EASYMESH_VENDOR_EXT_OUI definition and usage
Pass -DEASYMESH_VENDOR_EXT_OUI=0xAABBCC during build to override the default vendor OUI with the passed value. Here, AABBCC are hex characters representing the three octets of vendor OUI.
Pass -DEASYMESH_VENDOR_EXT_OUI=0xAABBCC during build to override the default vendor OUI with the passed value. Here, AABBCC are hex characters representing the three octets of vendor OUI.