ofp-prop: Fix unaligned 128 bit access. #2334

Job	Run time
linux rpm fedora	3m 59s
osx clang --disable-ssl	1m 38s
linux deb no dpdk	6m 42s
dpdk gcc	6s
clang-analyze	18m 6s
linux gcc --disable-ssl	2m 23s
linux clang --disable-ssl	2m 24s
linux gcc c99	2m 44s
linux clang c99	2m 19s
linux gcc test	8m 31s
linux clang address,undefined test	16m 40s
linux gcc test --enable-shared	11m 11s
linux clang test --enable-shared	10m 56s
linux gcc check check-dpdk dpdk	17m 46s
linux clang check check-dpdk dpdk	17m 41s
linux gcc test -ljemalloc	8m 36s
linux clang test -ljemalloc	9m 11s
linux gcc --enable-afxdp	2m 20s
linux clang --enable-afxdp	2m 23s
linux gcc dpdk --enable-shared	3m 21s
linux clang dpdk --enable-shared	3m 17s
linux gcc dpdk-shared	2m 33s
linux clang dpdk-shared	2m 35s
linux gcc dpdk-shared --enable-shared	3m 14s
linux clang dpdk-shared --enable-shared	3m 22s
linux gcc m32 --disable-ssl	2m 19s
linux gcc check-ovsdb-cluster	6m 25s
linux gcc check-kernel -100	9m 1s
linux gcc check-kernel 100-	9m 7s
linux clang address,undefined check-kernel -100	11m 26s
linux clang address,undefined check-kernel 100-	11m 36s
linux gcc check-offloads -100	8m 55s
linux gcc check-offloads 100-	7m 15s
linux gcc dpdk check-system-userspace	10m 47s
linux clang address,undefined dpdk check-system-userspace	14m 45s
linux gcc dpdk check-system-tso	10m 30s
linux gcc dpdk check-afxdp	11m 9s
	4h 37m 13s

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