Use <stdint.h> for INT32_MIN and INT32_MAX.

Bug: 12708004
Change-Id: I99f222b2db1d128abf6ffbf7173a5aaff48f8e85
diff --git a/libpixelflinger/tests/gglmul/gglmul_test.cpp b/libpixelflinger/tests/gglmul/gglmul_test.cpp
index 103e4e9..073368e 100644
--- a/libpixelflinger/tests/gglmul/gglmul_test.cpp
+++ b/libpixelflinger/tests/gglmul/gglmul_test.cpp
@@ -225,8 +225,6 @@
 }
 
 // gglMulii() tests
-const int32_t INT32_MAX = 0x7FFFFFFF;
-const int32_t INT32_MIN = 0x80000000;
 
 struct gglMulii_test_t
 {