add config to enable EC-JPAKE and HKDF (GIT8266O-634)

[Kxuan]

We need EC-JPAKE and HKDF in our ESP8266 project. But the mbedtls in ESP8266 does not enable these two features.

In esp-idf, these two configs have already been added in Kconfig.

I picked the two patches from esp-idf, and hope they can be merged into ESP8266 v3.4.

[CLAassistant]

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❌ shahpiyushv
❌ wgtdkp
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[Kxuan]

@shahpiyushv @wgtdkp

Could you please check these patches? It really helpful if these two option are providered in ESP8266's Kconfig

[wgtdkp]

LGTM 👍