build_system: Modifications for A5's AOCPU supported. [1/1]

PD#SWPL-67429

Problem:
Modifications for A5's AOCPU supported.

Solution:
Modifications for A5's AOCPU supported.

Verify:
av409_a113x2

Change-Id: I45237f14aaa7952c239624ea3460273eccf5f164
Signed-off-by: Xiaohu.Huang <xiaohu.huang@amlogic.com>
diff --git a/build_combination.in b/build_combination.in
index 39f6f1a..b6a7c7e 100644
--- a/build_combination.in
+++ b/build_combination.in
@@ -2,6 +2,8 @@
 arm64 a1 ad401_a113l speaker
 arm64 a1 ad403_a113l speaker
 arm64 a1 ad409_a113l speaker
+riscv a5 av400_a113x2 aocpu
+riscv a5 av409_a113x2 aocpu
 riscv t5d am301_t950d4 aocpu
 riscv t5w at301_t962d4 aocpu
 riscv t5w at309_t962d4 aocpu