Update to 1.1:

• Add .ino file instead of .cpp to SRCS when we have a .ino file.
  
  Remove test for .ino and .cpp since it doesn't work when we aren't using an obj dir.
• Instead of generating an error for all make targets when AVRDUDE_PORT is "arduino" and AVRDUDE_PORT is not defined allow everything except install/flash.

Reviewed by: ler (mentor)
Approved by: ler (mentor)
Differential Revision: https://reviews.freebsd.org/D14525