xilinx: zynqmp: Fix AES with a user provided key

The user provided key address was not flushed in struct aes because of
the flushing location in the function.

Signed-off-by: Janne Ylalehto <ylalehto@gmail.com>
Link: https://lore.kernel.org/r/20220816124525.19671-1-ylalehto@gmail.com


Signed-off-by: Michal Simek <michal.simek@amd.com>