imagebuilder: copy apk keys with CONFIG_SIGNATURE_CHECK

With CONFIG_SIGNATURE_CHECK enabled, copy keys following OPKG pattern.

Signed-off-by: Christian Marangi <[email protected]>

target/imagebuilder/Makefile

@@ -82,13 +82,16 @@ else
 		-exec $(CP) -t $(IB_LDIR)/ {} +
 endif
 
-ifneq ($(CONFIG_USE_APK),y)
 ifneq ($(CONFIG_SIGNATURE_CHECK),)
+ifneq ($(CONFIG_USE_APK),y)
 	echo ''                                                        >> $(PKG_BUILD_DIR)/repositories.conf
 	echo 'option check_signature'                                  >> $(PKG_BUILD_DIR)/repositories.conf
 	$(INSTALL_DIR) $(PKG_BUILD_DIR)/keys
 	$(CP) -L $(STAGING_DIR_ROOT)/etc/opkg/keys/ $(PKG_BUILD_DIR)/
 	$(CP) -L $(STAGING_DIR_ROOT)/usr/sbin/opkg-key $(PKG_BUILD_DIR)/scripts/
+else
+	$(INSTALL_DIR) $(PKG_BUILD_DIR)/keys
+	$(CP) -L $(STAGING_DIR_ROOT)/etc/apk/keys/ $(PKG_BUILD_DIR)/
 endif
 endif