remoteproc: Correct resource handling upon boot failure

The freeing of resources will attempt to clear values previously set in
the cached resource table, so make sure to free the table after we have
cleaned up the resources.

Fixes: 988d204c ("remoteproc: Move handling of cached table to boot/shutdown")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>