Makefile: add $(LIGHTNINGD_SRC_NOHDR) to $(ALL_C_SOURCES) for "make clean" to work properly

"make clean" removes all object files listed in $(ALL_OBJS), which is derived from $(ALL_C_SOURCES).
Source files in $(LIGHTNINGD_SRC_NOHDR) are missing from $(ALL_C_SOURCES) therefore some object files are not removed by "make clean".
This commit fixes this point.

Signed-off-by: YOSHIDA Masanori <masanori.yoshida@gmail.com>
Changelog-None

lightningd/Makefile

@@ -56,7 +56,7 @@ LIGHTNINGD_OBJS := $(LIGHTNINGD_SRC:.c=.o) $(LIGHTNINGD_SRC_NOHDR:.c=.o)
 $(LIGHTNINGD_OBJS): $(LIGHTNINGD_HEADERS) $(LIGHTNINGD_CONTROL_HEADERS)
 
 # Make sure these depend on everything.
-ALL_C_SOURCES += $(LIGHTNINGD_SRC)
+ALL_C_SOURCES += $(LIGHTNINGD_SRC) $(LIGHTNINGD_SRC_NOHDR)
 ALL_C_HEADERS += $(LIGHTNINGD_HEADERS)
 ALL_PROGRAMS += lightningd/lightningd