package/libvpl: fix libdrm dependency

Buildroot commit c50e9c21f0444b064bc257fcc0d3073fee945623 initially
added the package onevpl (meanwhile renamed to libvpl) and forgot to
add all dependencies of BR2_PACKAGE_LIBDRM_INTEL.

Fixes:
http://autobuild.buildroot.org/results/8fa/8fa0f2cd7a027d3d8fae56125621b0b814e132da/

Note: BR2_PACKAGE_LIBDRM_HAS_ATOMIC is always true on x86, but it is
propagated for consistency with the actual dependencies of libdrm-intel.

Notes: this means the current comntition in the .mk is correct in
practice, even if it does not account for the atomic case on x86.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
[yann.morin.1998@free.fr: add notes]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/libvpl/Config.in

@@ -12,7 +12,9 @@ config BR2_PACKAGE_LIBVPL
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_WAYLAND_PROTOCOLS if BR2_PACKAGE_WAYLAND
 	# libva support needs a libdrm with intel driver
-	select BR2_PACKAGE_LIBDRM_INTEL if BR2_PACKAGE_LIBVA
+	select BR2_PACKAGE_LIBDRM_INTEL if BR2_PACKAGE_LIBVA && \
+		(BR2_i386 || BR2_x86_64) && \
+		BR2_PACKAGE_LIBDRM_HAS_ATOMIC
 	select BR2_PACKAGE_LIBXCB if BR2_PACKAGE_XORG7
 	select BR2_PACKAGE_XLIB_LIBX11 if BR2_PACKAGE_XORG7
 	help