ta: remoteproc: add command to release remote processor firmware

This patch introduces a new command `TA_RPROC_CMD_RELEASE_FW` to release
the firmware images and associated resources of a remote pro

ta: remoteproc: add command to release remote processor firmware

This patch introduces a new command `TA_RPROC_CMD_RELEASE_FW` to release
the firmware images and associated resources of a remote processor.

This command can be called by the non-secure context to release the loaded
firmware if the remoteproc is not running.

The command can be used, for instance, in case an error occurs in the
non-secure context between the load request and the start of the
remote processor. Calling the command allows releasing the loaded firmware
and going back to the REMOTEPROC_OFF state.

This command should also be called after the stop of the
remote processor to release associated resources.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

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ta: remoteproc: add remote processor Trusted Application

Add a generic TA for a remote processor firmware management.
This TA should be defined as early TA to allow remote processor
firmware managem

ta: remoteproc: add remote processor Trusted Application

Add a generic TA for a remote processor firmware management.
This TA should be defined as early TA to allow remote processor
firmware management in Linux kernel built-in driver and in boot stages.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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