mwlwifi: add PKG_FLAGS:=nonshared

This should fix the problem of mwlwifi-firmware-* not being found
when using the ImageBuilder.

Signed-off-by: Daniel Golle <[email protected]>

package/kernel/mwlwifi/Makefile

@@ -21,6 +21,7 @@ PKG_MIRROR_HASH:=0eda0e774a87e58e611d6436350e1cf2be3de50fddde334909a07a15b0c9862
 
 PKG_MAINTAINER:=Imre Kaloz <[email protected]>
 PKG_BUILD_PARALLEL:=1
+PKG_FLAGS:=nonshared
 
 include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/package.mk