remoteproc: Get rid of tedious error path

Get rid of tedious error management by moving firmware and operation
allocation after calling device_initialize().  That way we take advantage
of the automatic call to rproc_type_release() to cleanup after ourselves
when put_device() is called.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20200420231601.16781-5-mathieu.poirier@linaro.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>