dpdk: Use DPDK 21.11.8 release for OVS 2.17. #2490

Job	Run time
osx clang --disable-ssl	1m 41s
linux gcc --disable-ssl	2m 31s
linux clang --disable-ssl	2m 3s
linux gcc c99	2m 5s
linux clang c99	2m 46s
linux gcc test 4.14	8m 8s
linux clang test 4.14 asan	13m 14s
linux gcc test --enable-shared	10m 9s
linux clang test --enable-shared	11m 0s
linux gcc test dpdk	13m 42s
linux clang test dpdk	13m 38s
linux gcc test -ljemalloc	7m 22s
linux clang test -ljemalloc	9m 59s
linux gcc 5.8 5.5 5.4 4.19	5m 46s
linux clang 5.8 5.5 5.4 4.19	5m 57s
linux gcc 4.14 4.9 4.4	3m 49s
linux clang 4.14 4.9 4.4	4m 34s
linux gcc afxdp 5.4	2m 58s
linux clang afxdp 5.4	2m 57s
linux gcc dpdk --enable-shared	9m 45s
linux clang dpdk --enable-shared	11m 5s
linux gcc dpdk-shared	8m 40s
linux clang dpdk-shared	8m 47s
linux gcc dpdk-shared --enable-shared	9m 28s
linux clang dpdk-shared --enable-shared	9m 4s
linux gcc m32 --disable-ssl	2m 13s
linux gcc deb	6m 46s
	3h 10m 7s

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