Simple remote outdoor light switch that fits in a receptical box
You could run 3-conductor wire (plus ground) from the house to the pole.  It will have black and red hots.  You could switch the red hot in the house, and run the black hot to the pole where the motion detector can switch it.  Then at the light, connect the red from the house, and the output of the motion detector to the light.

However, you're better off using a home-automation capable light with motion detector and remote.  Some of those will even let you add a chime later if you want to know when there's motion.