cogl-texture-pixmap-x11: Fix the can_hardware_repeat wrapper
cogl-texture-pixmap-x11: Fix the can_hardware_repeat wrapper

The wrapper for the can_hardware_repeat had a cut and paste error so
it would call the wrong function on the child texture.

Many thanks to Owen Taylor for finding this bug.

collects/cogl,Distrotech/cogl,spatulasnout/cogl,djdeath/cogl,Distrotech/cogl,gcampax/cogl,gcampax/cogl,collects/cogl,djdeath/cogl,djdeath/cogl-android,spatulasnout/cogl,gcampax/cogl,djdeath/cogl,djdeath/cogl-android,djdeath/cogl-android,Distrotech/cogl,gcampax/cogl,Distrotech/cogl