package/freescale-imx/imx-gpu-viv: fix gbm.pc

libgbm isn't output/target specific, only one version is included
in gpu-core/usr/lib/libgbm.so.
Similarly only gbm.pc is included and not gbm_x11.pc.

Signed-off-by: Daniel Lang <d.lang@abatec.at>
Reviewed-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 711ec0ceaaa10275a5ca23d54e656f782d1a5d81)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/freescale-imx/imx-gpu-viv/imx-gpu-viv.mk

@@ -57,7 +57,7 @@ define IMX_GPU_VIV_FIXUP_PKGCONFIG
 endef
 else ifeq ($(IMX_GPU_VIV_LIB_TARGET),x11)
 define IMX_GPU_VIV_FIXUP_PKGCONFIG
-	$(foreach lib,egl gbm glesv1_cm glesv2 vg, \
+	$(foreach lib,egl glesv1_cm glesv2 vg, \
 		ln -sf $(lib)_x11.pc $(@D)/gpu-core/usr/lib/pkgconfig/$(lib).pc
 	)
 endef