Adding instructions for compiling mini-era benchmark for NVDLA

hpvm/test/dnn_benchmarks/hpvm-c/benchmarks/miniera-hpvm/src/README.md

+
+# Environment setup 
+
+Add path to `libprotobuf.so` and `libnvdla_compiler.so` in LD_LIBRARY_PATH
+
+
+
+# Compilation Command 
+
+Compilation script : `miniera-hpvm/src/compile_benchmark.sh`
+
+Command:
+
+```
+python3 /home/hsharif3/Gitlab/hpvm_release_nvdla/hpvm/build/tools/hpvm/tools/hpvm-clang/main.py -t nvdla --conf-file data/tuner_confs.txt -DMODEL_PARAMS_DIR=${PATH_TO_MODELPARAMS} -fno-exceptions miniera-hpvm.cpp miniera-hpvm
+
+```
+
+
+
+# Frontend/Source changes required
+
+* Weights must be FP16!
+
+* Weights for FC layers need to be tranposed 
+
+* Modify paths to readTrainedWeights to pass constant file path -- use MODEL_PARAMS_STR as part of string