flow: Makefile: Move variables.mk include

Include this file before the BLOCKS logic since it's using the
WORK_HOME variable now, which is not defined before including
this file.

Signed-off-by: Daniel Schultz <[email protected]>

Author: dnltz

flow/Makefile

@@ -89,6 +89,8 @@ include $(DESIGN_CONFIG)
 
 export DESIGN_DIR ?= $(dir $(DESIGN_CONFIG))
 
+include $(FLOW_HOME)/scripts/variables.mk
+
 # default value "base" is duplicated from variables.yaml because we need it
 # earlier in the flow for BLOCKS. BLOCKS is a feature specific to the
 # ORFS Makefile.
@@ -148,7 +150,6 @@ FLOW_HOME := $(abspath $(dir $(firstword $(MAKEFILE_LIST))))
 endif
 export FLOW_HOME
 
-include $(FLOW_HOME)/scripts/variables.mk
 
 define GENERATE_ABSTRACT_RULE
 ifeq ($(wildcard $(3)),)