sparse: Add immintrin.h header. #2222

Job	Run time
linux deb no dpdk	4m 40s
linux rpm fedora	4m 21s
osx clang --disable-ssl	1m 41s
dpdk gcc	7s
linux gcc --disable-ssl	2m 8s
linux clang --disable-ssl	2m 12s
linux gcc c99	1m 57s
linux clang c99	8m 7s
linux gcc test	7m 26s
linux clang test asan	13m 14s
linux clang test ubsan	9m 36s
linux gcc test --enable-shared	10m 4s
linux clang test --enable-shared	10m 57s
linux gcc test dpdk	7m 56s
linux clang test dpdk	7m 48s
linux gcc test -ljemalloc	7m 45s
linux clang test -ljemalloc	7m 56s
linux gcc --enable-afxdp	1m 58s
linux clang --enable-afxdp	2m 7s
linux gcc dpdk --enable-shared	3m 8s
linux clang dpdk --enable-shared	2m 44s
linux gcc dpdk-shared	2m 23s
linux clang dpdk-shared	2m 18s
linux gcc dpdk-shared --enable-shared	2m 59s
linux clang dpdk-shared --enable-shared	2m 55s
linux gcc m32 --disable-ssl	2m 16s
	2h 10m 43s

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