gl_texture_cache: Take std::string by reference in DecorateViewName()

LabelGLObject takes a string_view, so we don't need to make copies of
the std::string.

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -403,7 +403,7 @@ void CachedSurface::DecorateSurfaceName() {
     LabelGLObject(GL_TEXTURE, texture.handle, GetGpuAddr(), params.TargetName());
 }
 
-void CachedSurfaceView::DecorateViewName(GPUVAddr gpu_addr, std::string prefix) {
+void CachedSurfaceView::DecorateViewName(GPUVAddr gpu_addr, const std::string& prefix) {
     LabelGLObject(GL_TEXTURE, main_view.handle, gpu_addr, prefix);
 }
 

src/video_core/renderer_opengl/gl_texture_cache.h

@@ -90,7 +90,7 @@ public:
                       Tegra::Texture::SwizzleSource z_source,
                       Tegra::Texture::SwizzleSource w_source);
 
-    void DecorateViewName(GPUVAddr gpu_addr, std::string prefix);
+    void DecorateViewName(GPUVAddr gpu_addr, const std::string& prefix);
 
     void MarkAsModified(u64 tick) {
         surface.MarkAsModified(true, tick);