remoteproc updates for v5.13

This adds support to the remoteproc core for detaching Linux from a
running remoteproc, e.g. to reboot Linux while leaving the remoteproc
running, and it enable this support in the stm32 remoteproc driver.

It also introduces a property for memory carveouts to track if they are
iomem or system ram, to enable proper handling of the differences.

The imx_rproc received a number of fixes and improvements, in particular
support for attaching to already running remote processors and i.MX8MQ
and i.MX8MM support.

The Qualcomm wcss driver gained support for starting and stopping the
wireless subsystem on QCS404, when not using the TrustZone-based
validator/loader.

Finally it brings a few fixes to the TI PRU and to the firmware loader
for the Qualcomm modem subsystem drivers.
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