Log Message:
libp11: update to 0.4.11

- fixed installation location of openssl engine
- avoid regenerating autoconf bits

New in 0.4.11; 2020-10-11; Michał Trojnara
* Fixed "EVP_PKEY_derive:buffer too small" EC errors (Luka Logar)
* Fixed various memory leaks (Mateusz Kwiatkowski)
* Fixed Windows VERSIONINFO (Pavol Misik)
* Fixed builds with OpenSSL older than 1.0.2 (Michał Trojnara)
* Fixed a double free in EVP_PKEY_meth_free() (Mikhail Durnev)
* Added CKA_VALUE_LEN to EC key derivation template (Michał Trojnara)
* Fixed handling keys without label attribute (efternavn)
* Updated the tests (Anderson Toshiyuki Sasaki)
* Made ECDH-derived keys extractable (Bent Bisballe Nyeng)
* Added support for pin-source within PKCS#11 URI (Stanislav Levin)
* Improved LibreSSL compatibility (patchMonkey156)
* Fixed handling RSA private keys in BIND (Stanislav Levin)
* Added macOS testing support (Stanislav Levin)
* Fixed engine object search algorithm (Anderson Toshiyuki Sasaki)