i965/gen9: use an unreserved surface alignment value

Although the horizontal and vertical alignment fields are ignored here,
0 is a reserved value for them and may cause undefined behavior. Change
the default value to an abitrary valid one.

v2: add comment about chosen value (Topi).

Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
1 file changed