#296 Fix build with binutils 2.47

[Bernd Kuhls]

binutils 2.47 removed the bfd_boolean compatibility define along with the
TRUE/FALSE macros it brought in, see binutils commit 1d95b744c069 ("Remove
bfd_boolean definition from bfd"). This breaks oprofile:

opagent.c:81:2: error: use of undeclared identifier 'bfd_boolean'
create_bfd.c:68:18: error: 'FALSE' undeclared

This patch fixes the problem:
https://git.openembedded.org/meta-openembedded/commit/?id=a884b55acd042b8ab29c70952c0d8daff48a1468