Avoid using a format for the usage param in consumer test

Flag: TEST_ONLY
Bug: b/373667975
Test: atest libgui_test
Change-Id: I492a25eededac60f835831390de037bdc5f4eac7

Author: jmacnak

libs/gui/tests/BufferItemConsumer_test.cpp

@@ -30,6 +30,7 @@ static constexpr int kWidth = 100;
 static constexpr int kHeight = 100;
 static constexpr int kMaxLockedBuffers = 3;
 static constexpr int kFormat = HAL_PIXEL_FORMAT_RGBA_8888;
+static constexpr int kUsage = GRALLOC_USAGE_SW_READ_RARELY;
 static constexpr int kFrameSleepUs = 30 * 1000;
 
 class BufferItemConsumerTest : public ::testing::Test {
@@ -56,7 +57,7 @@ class BufferItemConsumerTest : public ::testing::Test {
     };
 
     void SetUp() override {
-        mBIC = new BufferItemConsumer(kFormat, kMaxLockedBuffers, true);
+        mBIC = new BufferItemConsumer(kUsage, kMaxLockedBuffers, true);
         String8 name("BufferItemConsumer_Under_Test");
         mBIC->setName(name);
         mBFL = new BufferFreedListener(this);