Ignore broken endpoints in get_v3_catalog

Change-Id: Ifd858e9f37155e3806329c4688be494d0132a9c7
Partial-bug: #1347862
(cherry picked from commit 7e4aab33e2d38a87e26f9f4e65b4ba2097564fd2)
Merge "Ignore broken endpoints in get_v3_catalog" into stable/icehouse