Update ExternalCertificateProvider.aidl

[BinartPhotography]

Provide a padding type for externalCertificateProvider Based on server-side OpenSSL behaviour the data to be signed by externalCertificateProvider may be or may be not padded already. To choose the proper signing mechanism we need to pass external info.

[Ultimatetinycellstuan]

@ashraf789

[ashraf789]

@tinycellstuan @Ultimatetinycellstuan My question is the same as the #101 request. where is the implementation and where do you call this method. please write details.

Thanks.

[Ultimatetinycellstuan]

@tinycellstuan @Ultimatetinycellstuan My question is the same as the #101 request. where is the implementation and where do you call this method. please write details.

Thanks.

Implementation? Method? Could you break it down