package/freescale-imx/gpu-amd-bin-mx51: don't override dependencies

Don't override GPU_AMD_BIN_MX51_DEPENDENCIES in a conditional

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 7c9e88120d9545696afd5ff20f6422542811e4e1)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/freescale-imx/gpu-amd-bin-mx51/gpu-amd-bin-mx51.mk

@@ -12,7 +12,7 @@ GPU_AMD_BIN_MX51_SOURCE = amd-gpu-bin-mx51-$(GPU_AMD_BIN_MX51_BASE_VERSION).bin
 else
 GPU_AMD_BIN_MX51_VERSION = $(GPU_AMD_BIN_MX51_BASE_VERSION)-x11
 GPU_AMD_BIN_MX51_SOURCE = amd-gpu-x11-bin-mx51-$(GPU_AMD_BIN_MX51_BASE_VERSION).bin
-GPU_AMD_BIN_MX51_DEPENDENCIES = libxcb xlib_libX11 xlib_libXext \
+GPU_AMD_BIN_MX51_DEPENDENCIES += libxcb xlib_libX11 xlib_libXext \
 	xlib_libXrender xlib_libXau xlib_libXdmcp
 endif
 GPU_AMD_BIN_MX51_PROVIDES = libegl libgles libopenvg