Adding Epochs backend target build to installer script

hpvm/scripts/hpvm_installer.py

@@ -27,7 +27,7 @@ LINKS = [
     "test",
     "tools",
 ]
-MAKE_TARGETS = ["hpvm-clang"]
+MAKE_TARGETS = ["hpvm-clang", "LLVMDFG2LLVM_EPOCHS"]
 MAKE_TEST_TARGETS = ["check-hpvm-dnn", "check-hpvm-pass"]
 
 # Relative to project root which is __file__.parent.parent