i#2868 test failures: Add -no-pie to pcache tests to fix segfault (#3234)
i#2868 test failures: Add -no-pie to pcache tests to fix segfault (#3234)

Pcache tests don't properly seem to handle ET_DYN executables. -no-pie flag restores behavior of old tool-chain and makes test ET_EXE.

Issue: #2868, #3233 
AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio,AmesianX/dynamorio