The target heavily modifies caamalg.c, so changes introduced in
kernel commit 7b930def8ef6 ("crypto: caam - limit output IV to CBC
to work around CTR mode DMA issue") have broken build.
This adjusts the upstream changes to match the rest of our local
patch.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>