build: add support for specifying extra package dependencies for prepared, configured and built

Signed-off-by: Felix Fietkau <nbd@nbd.name>

include/package.mk

@@ -167,7 +167,7 @@ define Build/DefaultTargets
 	)
 
   $(STAMP_PREPARED) : export PATH=$$(TARGET_PATH_PKG)
-  $(STAMP_PREPARED):
+  $(STAMP_PREPARED): $(STAMP_PREPARED_DEPENDS)
 	@-rm -rf $(PKG_BUILD_DIR)
 	@mkdir -p $(PKG_BUILD_DIR)
 	$(foreach hook,$(Hooks/Prepare/Pre),$(call $(hook))$(sep))
@@ -176,7 +176,7 @@ define Build/DefaultTargets
 	touch $$@
 
   $(call Build/Exports,$(STAMP_CONFIGURED))
-  $(STAMP_CONFIGURED): $(STAMP_PREPARED)
+  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(STAMP_CONFIGURED_DEPENDS)
 	$(CleanStaging)
 	$(foreach hook,$(Hooks/Configure/Pre),$(call $(hook))$(sep))
 	$(Build/Configure)
@@ -185,7 +185,7 @@ define Build/DefaultTargets
 	touch $$@
 
   $(call Build/Exports,$(STAMP_BUILT))
-  $(STAMP_BUILT): $(STAMP_CONFIGURED)
+  $(STAMP_BUILT): $(STAMP_CONFIGURED) $(STAMP_BUILT_DEPENDS)
 	$(foreach hook,$(Hooks/Compile/Pre),$(call $(hook))$(sep))
 	$(Build/Compile)
 	$(foreach hook,$(Hooks/Compile/Post),$(call $(hook))$(sep))