secilc: Fix policy optimization test

Commit 692716f ("libsepol/cil: raise default attrs_expand_size to 2") was
reverted and attributes with one type are not expanded anymore.

Fixes:
    ./secilc test/policy.cil
    ./secilc -c 32 -O -M 1 -f /dev/null -o opt-actual.bin test/opt-input.cil
    checkpolicy -b -C -M -o opt-actual.cil opt-actual.bin >/dev/null
    diff test/opt-expected.cil opt-actual.cil
    11a12
    > (typeattribute at01)
    21a23
    > (typeattributeset at01 (tp01))
    25c27,28
    < (allow tp01 self (cl01 (p01a p01b p11a p11b)))
    ---
    > (allow tp01 at01 (cl01 (p11b)))
    > (allow tp01 self (cl01 (p01a p01b p11a)))

Signed-off-by: Petr Lautrbach <plautrba@redhat.com>
Acked-by: James Carter <jwcart2@gmail.com>

secilc/test/opt-expected.cil

@@ -9,6 +9,7 @@
 (category c01)
 (categoryorder (c01))
 (sensitivitycategory s01 (c01))
+(typeattribute at01)
 (typeattribute at02)
 (boolean b01 false)
 (type tp01)
@@ -19,10 +20,12 @@
 (type tpr3)
 (type tpr4)
 (type tpr5)
+(typeattributeset at01 (tp01))
 (typeattributeset at02 (tp01 tp02))
 (allow at02 tpr1 (cl01 (p01a p01b p11a)))
 (allow at02 tpr3 (cl01 (p01a p01b p11a)))
-(allow tp01 self (cl01 (p01a p01b p11a p11b)))
+(allow tp01 at01 (cl01 (p11b)))
+(allow tp01 self (cl01 (p01a p01b p11a)))
 (allow tp01 tpr1 (cl01 (p11b)))
 (dontaudit at02 tpr2 (cl01 (p01a p01b p11a)))
 (dontaudit at02 tpr4 (cl01 (p01a p01b p11a)))