qtmultimedia: Fix zero-copy patch for imx6 so that the plugin will be build
The "*imx6* {" is a check on mkspec name which doesn't contain
"imx6" in the case of building with bitbake.
When building with bitbake, it's the recipes deciding which
code/patch goes in -> we need to check here
Change-Id: Ia99515db58d79bcd460c87ad28c0ddfe19d4aa19 Signed-off-by: Thomas Senyk <thomas.senyk@pelagicore.com> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
