GLConsumer: add HW_TEXTURE usage when create texture

GPU expects external image to be aligned with its h/w requirement.
GraphicBuffer which will be used as texture, should be created with HW_TEXTURE usage.

Fixes: 201564624
Signed-off-by: SOOJONG HWANG <sjong.hwang@samsung.com>
Change-Id: Icac81da95f3c98bb2fe8d0cad2cef81c62951726