ext_render_snorm-render: Fix deprecated-non-prototype warning
tests/spec/ext_render_snorm/render.c:177:53: warning: too many arguments in call to 'create_and_bind_empty_texture'
177 | GLuint fbo_tex = create_and_bind_empty_texture(test);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
tests/spec/ext_render_snorm/render.c:177:48: warning: passing arguments to 'create_and_bind_empty_texture' without a prototype is deprecated in all versions of C and is not supported in C2x [-Wdeprecated-non-prototype]
177 | GLuint fbo_tex = create_and_bind_empty_texture(test);
| ^
Fixes: 5712e5965 ("ext_render_snorm-render: test for GL_EXT_render_snorm")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>