Ensure sonic yangs wheel is built before sonic-mgmt-common (sonic-net…

…#15226)

* Enhanced slave.mk to accept python wheels as dependency for a deb
  target. Dependent wheel names should be specified through the new
  {deb_name}_WHEEL_DEPENDS variable in the deb's make rules. The wheel
  will be built and installed in the slave docker before starting the
  deb build.

* Added sonic_yang_models-1.0-py3-none-any.whl as dependency for
  sonic-mgmt-common.deb. This is required for using the sonic yangs in
  UMF

Signed-off-by: Sachin Holla <sachin.holla@broadcom.com>

rules/sonic-mgmt-common.mk

@@ -5,6 +5,7 @@ SONIC_MGMT_COMMON = sonic-mgmt-common_$(MGMT_COMMON_VERSION)_$(CONFIGURED_ARCH).
 $(SONIC_MGMT_COMMON)_SRC_PATH = $(SRC_PATH)/sonic-mgmt-common
 $(SONIC_MGMT_COMMON)_DEPENDS  = $(LIBYANG_DEV) $(LIBYANG)
 $(SONIC_MGMT_COMMON)_RDEPENDS = $(LIBYANG)
+$(SONIC_MGMT_COMMON)_WHEEL_DEPENDS = $(SONIC_YANG_MODELS_PY3)
 SONIC_DPKG_DEBS += $(SONIC_MGMT_COMMON)
 
 SONIC_MGMT_COMMON_CODEGEN = sonic-mgmt-common-codegen_$(MGMT_COMMON_VERSION)_$(CONFIGURED_ARCH).deb

slave.mk

@@ -679,6 +679,7 @@ SONIC_TARGET_LIST += $(addprefix $(FILES_PATH)/, $(SONIC_MAKE_FILES))
 #     $(SOME_NEW_DEB)_DEPENDS = $(SOME_OTHER_DEB1) $(SOME_OTHER_DEB2) ...
 #     SONIC_MAKE_DEBS += $(SOME_NEW_DEB)
 $(addprefix $(DEBS_PATH)/, $(SONIC_MAKE_DEBS)) : $(DEBS_PATH)/% : .platform $$(addsuffix -install,$$(addprefix $(DEBS_PATH)/,$$($$*_DEPENDS))) \
+			$$(addsuffix -install,$$(addprefix $(PYTHON_WHEELS_PATH)/,$$($$*_WHEEL_DEPENDS))) \
 			$$(addprefix $(DEBS_PATH)/,$$($$*_AFTER)) \
 			$(call dpkg_depend,$(DEBS_PATH)/%.dep)
 	$(HEADER)