As memory region names are now derived purely from devicetree, remove
the `name` parameter from `DT_REGION_FROM_NODE_STATUS_OKAY`. Name is
`zephyr,linker-region` if it exists, otherwise the node path.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
The main motivation is to avoid polluting the all-caps "DT_"
namespace, which within zephyr belongs to devicetree.h.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Adds a public macro for creating memory regions from devicetree nodes.
`DT_REGION_FROM_NODE_STATUS_OKAY` declares the memory regions for
consumption by ld, assuming the node exists and has `status = "okay"`.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
