i915g: Add blitter_context argument.

i915g: Add blitter_context argument.

Fix build error.

  CC       i915_surface.lo
i915_surface.c:108:63: error: too few arguments to function call, expected 4, have 3
   util_blitter_default_src_texture(&src_templ, src, src_level);
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~                           ^
../../../../src/gallium/auxiliary/util/u_blitter.h:271:1: note: 'util_blitter_default_src_texture' declared here
void util_blitter_default_src_texture(struct blitter_context *blitter,
^

Fixes: a893c9169733 ("gallium/u_blitter: use 2D_ARRAY for cubemap blits if possible")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101340
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>