make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/crypto/xilinx/zynqmp-aes-gcm.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>