Failures on Fedora-ppc64le-native-gdbserver-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	fedora-ppc64le-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Fedora-ppc64le-native-gdbserver-m64/builds/5185>

Commit(s) tested:
	639a9038c9f4fc50b6a57c18fe84db4559367a96

Author(s) (in the same order as the commits):
	Simon Marchi <simon.marchi@polymtl.ca>

Subject:
	spu: Use ptid from regcache instead of inferior_ptid

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Fedora-ppc64le-native-gdbserver-m64/63/639a9038c9f4fc50b6a57c18fe84db4559367a96/>