package/freescale-imx/imx-gpu-viv: select libdrm

package/freescale-imx/imx-gpu-viv: select libdrm

Some libraries (libGL.so, vivante_dri.so, libEGL.so, libgbm_viv.so) are
linked against libdrm so select libdrm package.

Fixes: 8283e838f040 ("package/freescale-imx/imx-gpu-viv: bump to version 6.4.3.p1.2")
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Gary Bisson <gary.bisson@boundarydevices.com>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>