remoteproc: uclass: Add remoteproc resource handling helpers

Add remoteproc resource handling helpers. These functions
are primarily to parse the resource table and to handle
different types of resources. Carveout, devmem, trace &
vring resources are handled.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[Amjad: fix redefinition of "struct resource_table" and compile warnings ]
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>