opengl: move shaders to its own directory

Change-Id: I9ca5a97ae3ed2472257f468f6751903b458529a7
Reviewed-on: https://gerrit.libreoffice.org/30502Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>

vcl/Package_opengl.mk

@@ -7,7 +7,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 #
 
-$(eval $(call gb_Package_Package,vcl_opengl_shader,$(SRCDIR)/vcl/opengl))
+$(eval $(call gb_Package_Package,vcl_opengl_shader,$(SRCDIR)/vcl/opengl/shaders))
 
 $(eval $(call gb_Package_add_files,vcl_opengl_shader,$(LIBO_ETC_FOLDER)/opengl,\
     areaHashCRC64TFragmentShader.glsl \