ci: Fix OPTS not being passed to OSX builds. #1771

Job	Run time
osx clang --disable-ssl	4m 16s
dpdk gcc	11s
linux deb no dpdk	10m 7s
linux gcc --disable-ssl	4m 21s
linux clang --disable-ssl	3m 49s
linux gcc test	10m 57s
linux clang test asan	21m 13s
linux clang test ubsan	12m 29s
linux gcc test --enable-shared	17m 53s
linux clang test --enable-shared	14m 50s
linux gcc test dpdk	10m 43s
linux clang test dpdk	9m 46s
linux gcc test -ljemalloc	11m 28s
linux clang test -ljemalloc	12m 28s
linux gcc --enable-afxdp	3m 14s
linux clang --enable-afxdp	4m 11s
linux gcc dpdk --enable-shared	4m 52s
linux clang dpdk --enable-shared	4m 35s
linux gcc dpdk-shared	4m 29s
linux clang dpdk-shared	4m 52s
linux gcc dpdk-shared --enable-shared	4m 30s
linux clang dpdk-shared --enable-shared	5m 35s
linux gcc m32 --disable-ssl	6m 1s
	3h 6m 50s

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