daemon: Fix env bind for MONITOR_AGGREGATION_LEVEL
daemon: Fix env bind for MONITOR_AGGREGATION_LEVEL

Previously the environment binding for this variable was not working
correctly because the argument was bound to a local variable and the
environment variable was bound to the viper argument, not the local
variable. Fix this by directly using viper's representation of the
variable.

Signed-off-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@covalent.io>

eloycoto/cilium,scanf/cilium,cilium-team/cilium,michi-covalent/cilium,michi-covalent/cilium,tgraf/cilium,tgraf/cilium,eloycoto/cilium,scanf/cilium,scanf/cilium,scanf/cilium,tklauser/cilium,cilium-team/cilium,tklauser/cilium,eloycoto/cilium,cilium/cilium,tgraf/cilium,scanf/cilium,michi-covalent/cilium,eloycoto/cilium,eloycoto/cilium,tklauser/cilium,tklauser/cilium,cilium/cilium,cilium/cilium,scanf/cilium,scanf/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,eloycoto/cilium,tgraf/cilium,tklauser/cilium,eloycoto/cilium,tgraf/cilium,michi-covalent/cilium,cilium/cilium