do not hard-code CPU target based on uname (Closes: #
1009622).
The compiler in Debian correctly targets the right ISA for the
architecture. Hard-coding this can result in misbuilds depending on the
build machine. Also, armv7-a is the wrong target for armhf now, it should
be armv7-a+fp.
Gbp-Pq: Topic debian
Gbp-Pq: Name 0001-ftbfs-armhf.patch