struct of_device_id is not implicitly included anymore. Include
<linux/mod_devicetable.h> to fix compilation on Linux 5.15.
Also upstream commit a24d22b225ce15 ("crypto: sha - split sha.h into
sha1.h and sha2.h") from Linux 5.11 moves functionality from sha.h to
sha1.h.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>