[UBSan][snappy] Temporarily disable UBSan

UBSan was complaining about a load of a misaligned address.
Disable UBSan for this target for now, then we will come back to fix it
once asan-ubsan is migrated into CQ.

Bug: 47044
Change-Id: I50347ccadfdd3ff5dcf435b0e0a81fd117c5d9d9
1 file changed