lib: [ghash] add ghash implementation for armv8-a+aes platform
- add ghash_pre_neon_aes(), ghash_neon_aes() functions
- add minimalistic error handler for AArch64
- uncomment corresponding direct_api_param test
- uncomment ghash_test from kat app
- add input cases for ghash tests
Signed-off-by: Islam Ragimov islam.ragimov@arm.com