Build

Add meson option to disable explicit EC keys tests #1443

Job	Run time
CI with software token (fedora, gcc, softokn)	2m 56s
CI with software token (fedora, gcc, softhsm)	1m 18s
CI with software token (macos-14, softokn)	1m 37s
CI with software token (fedora, clang, softokn)	1m 15s
CI with software token (macos-14, softhsm)	1m 55s
CI with software token (fedora, clang, softhsm)	37s
CI with software token (debian, gcc, softokn)	3m 3s
CI with software token (debian, gcc, softhsm)	4m 6s
CI with software token (debian, clang, softokn)	1m 24s
CI with software token (debian, clang, softhsm)	1m 59s
CI with software token (centos, gcc, softokn)	3m 7s
CI with software token (centos, gcc, softhsm)	1m 2s
CI with software token (centos, clang, softokn)	1m 32s
CI with software token (centos, clang, softhsm)	1m 29s
CI with software token (ubuntu, gcc, softokn)	3m 16s
CI with software token (ubuntu, gcc, softhsm)	4m 13s
CI with software token (ubuntu, clang, softokn)	1m 22s
CI with software token (ubuntu, clang, softhsm)	2m 7s
	38m 18s

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