tests: hwsim: Allow configuring MODULEDIR

It can be useful to configure a different module directory, so you don't
need to install the kernel modules in the host /lib/modules/ location.
Allow configuring it in the config file.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

tests/hwsim/vm/inside.sh

@@ -45,6 +45,10 @@ fi
 
 mount --bind "$TESTDIR/vm/regdb/" /lib/firmware
 
+if [ "$MODULEDIR" != "" ] ; then
+	mount --bind $MODULEDIR /lib/modules
+fi
+
 # reload reg if (and only if) cfg80211.ko is already loaded
 iw reg reload || true
 

tests/hwsim/vm/vm-run.sh

@@ -150,6 +150,7 @@ A+="mac80211_hwsim.dyndbg=+p "
 A+="init=$CMD "
 A+="testdir=$TESTDIR "
 A+="timewarp=$TIMEWARP "
+A+="MODULEDIR=$MODULEDIR "
 A+="TELNET=$TELNET_ARG "
 A+="EPATH=$EPATH "
 A+="ARGS=$argsfile "