package/makedumpfile: remove consecutive empty lines

Fixes the following check-package warning:

package/makedumpfile/makedumpfile.mk:24: consecutive empty lines

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/makedumpfile/makedumpfile.mk

@@ -21,7 +21,6 @@ else
 MAKEDUMPFILE_TARGET = $(BR2_ARCH)
 endif
 
-
 define MAKEDUMPFILE_BUILD_CMDS
 	$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D) \
 		$(MAKEDUMPFILE_MAKE_OPTS) TARGET=$(MAKEDUMPFILE_TARGET) LINKTYPE=dynamic