feat: add standalone factory test firmware

ql-application/threadx/interface/factory_test/Makefile

@@ -0,0 +1,38 @@
+#-------------------------------------------------------------------------------
+# Standalone factory-test application.
+# This target intentionally replaces custom_app on the test/factory-test branch.
+#-------------------------------------------------------------------------------
+TOP_DIR:=$(TOP_DIR)
+ROOT_DIR:=$(TOP_DIR)/../..
+MAKEFILE_PATH :=$(subst $(strip \),/,$(abspath $(lastword $(MAKEFILE_LIST))))
+
+vpath %.c ../custom_app ../custom_app/lib/libnfc
+
+SRC_FILES+= \
+  factory_test.c \
+  factory_protocol.c \
+  factory_audio.c \
+  hal_i2c.c \
+  DP1312EA.c \
+  TypeA.c \
+
+INC_DIRS+= \
+  -I${TOP_DIR}/ \
+  -I${TOP_DIR}/common/include \
+  -I${TOP_DIR}/common/include/lwipv4v6 \
+  -I${TOP_DIR}/common/include/fs \
+  -I../custom_app/inc \
+  -I../custom_app/lib/libnfc \
+  -I. \
+
+U_FLAGS:= -include factory_nfc_compat.h
+U_CPPFLAGS:=
+
+DFLAGS+= \
+  -DFACTORY_TEST_BUILD \
+  -D__TM_ZONE=tm_zone \
+  -D__TM_GMTOFF=tm_gmtoff \
+
+U_LIBS:=
+
+include ${TOP_DIR}/config/common/makefile.mk