i965: Mark G45 as having surface tile offset support.

Fixes a regression since 02b632d8e8f2b14c155740d28c276b5869305c60.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
r600g/sb: Initialize shader::dce_flags.

Fixes "Uninitialized scalar field" defect reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Vadim Girlin <vadimgirlin@gmail.com>