[No Story] Correct handling of VIRTUAL_ENV variable

Change-Id: I71b42bbbabd8c1807fb410c919f23299b09f07e8

run_tests.sh

 #!/bin/bash
 # This script is designed for local usage.
+export VIRTUAL_ENV=$NRP_VIRTUAL_ENV
 
 # Code coverage does not seem work without /nfs4 or /gpfs access
 make test-nocover

verify.sh

@@ -3,6 +3,7 @@
 
 # Ignore generated files.
 export IGNORE_LINT="platform_venv|hbp_nrp_music_xml/hbp_nrp_music_xml/schema/generated"
+export VIRTUAL_ENV=$NRP_VIRTUAL_ENV
 
 # This script only runs static code analysis, the tests can be run separately using run_tests.sh
 make run_pep8 run_pylint