Fix build for resize_util

Fix that handles undefined CONFIG_SHARED

Change-Id: I585bd03078f9061d010880a294bf0ac423f0981a

examples.mk

@@ -70,7 +70,7 @@ vp9_spatial_scalable_encoder.SRCS += vpxstats.c vpxstats.h
 vp9_spatial_scalable_encoder.GUID   = 4A38598D-627D-4505-9C7B-D4020C84100D
 vp9_spatial_scalable_encoder.DESCRIPTION = Spatial Scalable Encoder
 
-ifeq ($(CONFIG_SHARED),no)
+ifneq ($(CONFIG_SHARED),yes)
 EXAMPLES-$(CONFIG_VP9_ENCODER)    += resize_util.c
 endif