Monitor: Rename the qemu-monitor.hx file

Let's be consistent and call it hmp-commands.hx, so that we have
qmp-commands.hx for QMP and hmp-commands.hx for HMP.

Please, note that this commit doesn't touch qemu-monitor.texi. All
texi files have the qemu- prefix and I don't think it's worth
changing that.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/Makefile.target b/Makefile.target
index 3a1fa7e..518ea27 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -307,7 +307,7 @@
 
 main.o: QEMU_CFLAGS+=$(GPROF_CFLAGS)
 
-monitor.o: qemu-monitor.h qmp-commands.h
+monitor.o: hmp-commands.h qmp-commands.h
 
 $(obj-y) $(obj-$(TARGET_BASE_ARCH)-y): $(GENERATED_HEADERS)
 
@@ -328,7 +328,7 @@
 gdbstub-xml.c: $(TARGET_XML_FILES) $(SRC_PATH)/feature_to_c.sh
 	$(call quiet-command,rm -f $@ && $(SHELL) $(SRC_PATH)/feature_to_c.sh $@ $(TARGET_XML_FILES),"  GEN   $(TARGET_DIR)$@")
 
-qemu-monitor.h: $(SRC_PATH)/qemu-monitor.hx
+hmp-commands.h: $(SRC_PATH)/hmp-commands.hx
 	$(call quiet-command,sh $(SRC_PATH)/hxtool -h < $< > $@,"  GEN   $(TARGET_DIR)$@")
 
 qmp-commands.h: $(SRC_PATH)/qmp-commands.hx
@@ -337,7 +337,7 @@
 clean:
 	rm -f *.o *.a *~ $(PROGS) nwfpe/*.o fpu/*.o
 	rm -f *.d */*.d tcg/*.o ide/*.o
-	rm -f qemu-monitor.h qmp-commands.h gdbstub-xml.c
+	rm -f hmp-commands.h qmp-commands.h gdbstub-xml.c
 
 install: all
 ifneq ($(PROGS),)