Rename gpu_mem.o to gpuMem.o

Underscore character may cause bpf prog/map naming collision. For
example, x.o with map y_z and x_y.o with map z both result in x_y_z
prog/map name, which should be prevented during compile-time.

aosp/2147825 will prohibit underscore character in bpf source name
(source name derives the obj name). Existing bpf modules with underscore
characters in source name need to be updated accordingly.

Bug: 236706995
Test: adb root; adb shell ls -l /sys/fs/bpf/ | grep gpuMem
Change-Id: I34e7a786d88fec1bd4dc0e3fe322fd46b3876bc5
diff --git a/services/gpuservice/tests/unittests/GpuMemTest.cpp b/services/gpuservice/tests/unittests/GpuMemTest.cpp
index 36ae179..8dabe4f 100644
--- a/services/gpuservice/tests/unittests/GpuMemTest.cpp
+++ b/services/gpuservice/tests/unittests/GpuMemTest.cpp
@@ -90,8 +90,8 @@
     EXPECT_EQ(mTestableGpuMem.getGpuMemTraceGroup(), "gpu_mem");
     EXPECT_EQ(mTestableGpuMem.getGpuMemTotalTracepoint(), "gpu_mem_total");
     EXPECT_EQ(mTestableGpuMem.getGpuMemTotalProgPath(),
-              "/sys/fs/bpf/prog_gpu_mem_tracepoint_gpu_mem_gpu_mem_total");
-    EXPECT_EQ(mTestableGpuMem.getGpuMemTotalMapPath(), "/sys/fs/bpf/map_gpu_mem_gpu_mem_total_map");
+              "/sys/fs/bpf/prog_gpuMem_tracepoint_gpu_mem_gpu_mem_total");
+    EXPECT_EQ(mTestableGpuMem.getGpuMemTotalMapPath(), "/sys/fs/bpf/map_gpuMem_gpu_mem_total_map");
 }
 
 TEST_F(GpuMemTest, bpfInitializationFailed) {