package/gcnano-binaries: new package

package/gcnano-binaries: new package

New package which provides the driver and binary blob libraries for
the STM32MP157 vivante gcnano gpu. The precompiled libraries depend
on wayland and libdrm.

Signed-off-by: Jens Kleintje <scooby22@web.de>
[Thomas:
 - add missing dependency on glibc
 - add missing dependencies on threads (wayland, libdrm) and !static
   (wayland)
 - introduce GCNANO_BINARIES_LIB_VERSION,
   GCNANO_BINARIES_DRIVER_VERSION and GCNANO_BINARIES_USERLAND_VERSION
   variables to simplify code a bit
 - greatly simplify the installation, by using more the available
   libraries/files. This also avoids the installation of duplicate
   release/debug libraries]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>