CI: Fix configure.ac and Makefiles to deliver libnutconf (optionally) #2742

Job	Run time
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, no)	4m 29s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-1.0)	6m 10s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-0.1)	4m 39s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, no)	4m 38s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-1.0)	4m 56s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-0.1)	4m 34s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, no)	4m 47s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-1.0)	4m 41s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-0.1)	4m 57s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, no)	6m 13s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-1.0)	9m 4s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-0.1)	4m 54s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, no)	4m 31s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-1.0)	4m 53s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-0.1)	7m 34s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, no)	6m 15s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-1.0)	5m 19s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-0.1)	6m 7s
Analyze (python, ubuntu-latest, PYTHON=python3, no, no)	1m 7s
	1h 39m 48s

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