target-generic-hostname: add /etc/hosts entry as well

Some applications (like proftpd) tries to resolve hostname at startup,
so add it to /etc/hosts.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

target/generic/Makefile.in

@@ -6,6 +6,8 @@ TARGET_GENERIC_GETTY_BAUDRATE:=$(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE
 target-generic-hostname:
 	mkdir -p $(TARGET_DIR)/etc
 	echo "$(TARGET_GENERIC_HOSTNAME)" > $(TARGET_DIR)/etc/hostname
+	$(SED) '$$a \127.0.1.1\t$(TARGET_GENERIC_HOSTNAME)' \
+		-e '/^127.0.1.1/d' $(TARGET_DIR)/etc/hosts
 
 target-generic-issue:
 	mkdir -p $(TARGET_DIR)/etc