Fix LMBench installation.
Fix LMBench installation.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=279148890

GoogleCloudPlatform/PerfKitBenchmarker,GoogleCloudPlatform/PerfKitBenchmarker,GoogleCloudPlatform/PerfKitBenchmarker,GoogleCloudPlatform/PerfKitBenchmarker