evas/gl_common: Reset current texture target with proper value when creating engine gl context.

Summary:
set current target with default value of GL_TEXTURE_2D.
target should be valid value.

Reviewers: jpeg

Reviewed By: jpeg

Subscribers: wonsik, cedric, spacegrapher

Differential Revision: https://phab.enlightenment.org/D3423

src/modules/evas/engines/gl_common/evas_gl_context.c

@@ -691,6 +691,8 @@ evas_gl_common_context_new(void)
           }
      }
 
+   gc->state.current.tex_target = GL_TEXTURE_2D;
+
    if (!shared)
      {
         const char *ext;