gdb: pass program space to entry_point_address

Make the current program space reference bubble up one level.

Change-Id: Ifc9b8186abaefb10caf99f79ae09e526fa65c882
Approved-By: Tom Tromey <tom@tromey.com>
Reviewed-By: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
5 files changed