The test defines int bitfields that are more than 16 bits wide, and this
fails for the avr with its 16 bit integer size. Therefore, require
effective target int32plus.
gcc/testsuite/
2016-11-03 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
* gcc.c-torture/execute/pr78170.c: Require int32plus.
From-SVN: r241809
