dpdk: Use DPDK 21.11.8 release for OVS 3.0. #2491

Job	Run time
linux deb no dpdk	7m 18s
osx clang --disable-ssl	1m 38s
linux deb shared dpdk	7m 9s
linux gcc --disable-ssl	2m 8s
linux clang --disable-ssl	2m 14s
linux gcc c99	2m 6s
linux clang c99	2m 8s
linux gcc test	7m 24s
linux clang test asan	13m 39s
linux clang test ubsan	9m 46s
linux gcc test --enable-shared	10m 23s
linux clang test --enable-shared	9m 57s
linux gcc test dpdk	15m 25s
linux clang test dpdk	14m 29s
linux gcc test -ljemalloc	7m 40s
linux clang test -ljemalloc	7m 43s
linux gcc afxdp 5.4	3m 22s
linux clang afxdp 5.4	2m 50s
linux gcc dpdk --enable-shared	10m 11s
linux clang dpdk --enable-shared	9m 22s
linux gcc dpdk-shared	8m 40s
linux clang dpdk-shared	8m 58s
linux gcc dpdk-shared --enable-shared	9m 39s
linux clang dpdk-shared --enable-shared	9m 18s
linux gcc m32 --disable-ssl	2m 10s
	3h 5m 37s

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