hwsim tests: Make channel configuration for VM tests easier

Add a CHANNELS configuration to the script running the VM
that can be added to the vm-config file to allow running
the tests with hwsim devices supporting more than a single
channel.

Eventually, with the (hopefully) upcoming dynamic work in
mac80211_hwsim, this might go away entirely, but for now
this allows testing more code paths.

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

tests/hwsim/vm/vm-run.sh

@@ -25,6 +25,9 @@ KVMOUT=ttyS1
 # extra KVM arguments, e.g., -s for gdbserver
 #KVMARGS=-s
 
+# number of channels each hwsim device supports
+CHANNELS=1
+
 test -f vm-config && . vm-config
 
 if [ -z "$KERNEL" ] && [ -z "$KERNELDIR" ] ; then
@@ -48,4 +51,4 @@ exec kvm \
 	-fsdev local,security_model=none,id=fsdev-logs,path="$LOGDIR",writeout=immediate \
 	-device virtio-9p-pci,id=fs-logs,fsdev=fsdev-logs,mount_tag=logshare \
 	-monitor null -serial stdio -serial file:$LOGDIR/console \
-	-append "mac80211_hwsim.radios=5 init=$CMD testdir=$TESTDIR console=$KVMOUT root=/dev/root rootflags=trans=virtio,version=9p2000.u ro rootfstype=9p EPATH=$EPATH ARGS=$*"
+	-append "mac80211_hwsim.channels=$CHANNELS mac80211_hwsim.radios=5 init=$CMD testdir=$TESTDIR console=$KVMOUT root=/dev/root rootflags=trans=virtio,version=9p2000.u ro rootfstype=9p EPATH=$EPATH ARGS=$*"