These do no longer have support in Linux. Neither the BSDs support
these CPUs. There is no point in pretending these are supported by
dpkg.

Ref: Linux commit 26202873bb51fafdaa51be3e8de7aab9beb49f70 (avr32)
Ref: Linux commit 553b085c2075f6a4a2591108554f830fa61e881f (m32r)
Ref: Linux commit bb9d812643d8a121df7d614a2b9c60193a92deb0 (tile)