cape: PRU-04 typo fix
rproc: core: Allow bootup without resources

Not every core has a need to communicate with the host via VDEVS.
Allow booting without a resource table.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
rproc: pru: Allow PRU with no resources

Some PRUs might want to be fast non-host communicating; the comm
takes place only with the other PRU in the system which acts as
a frontend. Allow that by having no resources.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
cape: PRU: Remove resources for PRU1
rproc: PRU: Allow more than one vdev per PRU
capes: PRU: Update for new rproc