Fix glDrawElements API issue

Follow opengles spec, if currently bound framebuffer is not complete,
GL_INVALID_FRAMEBUFFER_OPERATION should be generated. But guest OS
does not handle such error. For more details, please see
https://www.khronos.org/opengles/sdk/docs/man/xhtml/glDrawElements.xml

Change-Id: I717de90774cfac48d7eef3a3063fefcab8a59961
Signed-off-by: Lizhe Liu <lizhe.liu@intel.com>
2 files changed