Properly handle fallback cipher type case in wc_Pkcs11_CryptoDevCb. #836

Job	Run time
load-targets	5s
analyze (gcc-arm-cortex-m4-tls12, gcc-arm, cortex-m4-tls12, sudo apt-get update && sudo apt-get i...	2m 0s
analyze (gcc-arm-cortex-m4-min-ecc, gcc-arm, cortex-m4-min-ecc, sudo apt-get update && sudo apt-g...	1m 51s
analyze (gcc-arm-cortex-m4, gcc-arm, cortex-m4, sudo apt-get update && sudo apt-get install -y gc...	2m 0s
analyze (gcc-arm-cortex-m4-baremetal, gcc-arm, cortex-m4-baremetal, sudo apt-get update && sudo a...	1m 51s
	7m 47s

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