gdb: pass program space to entry_point_address_query

Make the current program space bubble up one level.

Change-Id: Ic3ad0869ca1afe41854f605a6f7eb092fca29ff8
Approved-By: Tom Tromey <tom@tromey.com>
Reviewed-By: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
4 files changed