gpu: fix occasional compile error [1/1]

PD#SWPL-3488

Problem:
occasional compile error

Solution:
fix occasional compile error

Verify:
1. compile pass;
2. boot ok, can access in launcher;

Change-Id: I1997e418da8bf0447b2a1124305a0b74756e868c
Signed-off-by: binqi.zhang <binqi.zhang@amlogic.com>