Bug: RSA key can't work

[nntp4]

• reading API docs: https://github.com/intel/ehsm/blob/main/docs/API_Reference.md#createkey
• reason flag --padding_mode doesn't correctly work.

Example:

# 1.
cd ehsm && ./run_with_single.sh

cd test/cli

# 2.  here return success
python3 createkey.py --url  https://127.0.0.1:9002 --keyspec EH_RSA_4096  --origin EH_INTERNAL_KEY --padding_mode EH_PAD_RSA_PKCS1

# 3.
python3 asymmetric_encrypt.py  --url https://127.0.0.1:9002 --keyid  0c96e815-6969-47f1-ac9b-03ba0c5fa888  --data MTIzNA==