tools/lib/thermal: Remove the thermal.h soft link when doing make clean

Run "make -C tools thermal" can create a soft link for thermal.h in
tools/include/uapi/linux. Just rm it when make clean.

Signed-off-by: zhang jiao <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Daniel Lezcano <[e-mail]>

tools/lib/thermal/Makefile

···
 
 clean:
 	$(call QUIET_CLEAN, libthermal) $(RM) $(LIBTHERMAL_A) \
-                *.o *~ *.a *.so *.so.$(VERSION) *.so.$(LIBTHERMAL_VERSION) .*.d .*.cmd LIBTHERMAL-CFLAGS $(LIBTHERMAL_PC)
+                *.o *~ *.a *.so *.so.$(VERSION) *.so.$(LIBTHERMAL_VERSION) \
+                .*.d .*.cmd LIBTHERMAL-CFLAGS $(LIBTHERMAL_PC) \
+                $(srctree)/tools/$(THERMAL_UAPI)
 
 $(LIBTHERMAL_PC):
 	$(QUIET_GEN)sed -e "s|@PREFIX@|$(prefix)|" \