Fixes following build error on mpc85xx/generic:
ppc_initreg.c: In function 'ppc_set_initial_registers_tid':
ppc_initreg.c:79:22: error: field 'r' has incomplete type
struct pt_regs r;
Ref: FS#2924
Fixes: d27623b542 ("elfutils: update to 0.179")
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
[commit description facelift]
Signed-off-by: Petr Štetiar <ynezz@true.cz>