[binutils-gdb] i386: Fix type of gdbarch_tdep::register_reggroup_p

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT c5bcd27856f388ae4935b525b1016e812803ddf5 ***

Author: Simon Marchi <simon.marchi@ericsson.com>
Branch: master
Commit: c5bcd27856f388ae4935b525b1016e812803ddf5

i386: Fix type of gdbarch_tdep::register_reggroup_p

gdb/ChangeLog:

	* i386-tdep.h (struct gdbarch_tdep): Change type of
	register_reggroup_p to gdbarch_register_reggroup_p_ftype.