Makefile: Change LPCXpressoWIN.enc to var
Makefile: Change LPCXpressoWIN.enc to var

* If your LPCXpressoWIN.enc cann't be found, you can
* export LPCLINK_FIRM in your shell environment.

Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano,Canaan-Creative/Avalon-nano