Rename ARM_NPU tag to ethos-u in tensorflow.cmake

Change-Id: I67ce03c3c9e5f80b34ed5b02ff90994addb622da
diff --git a/tensorflow.cmake b/tensorflow.cmake
index 355a673..d304a84 100644
--- a/tensorflow.cmake
+++ b/tensorflow.cmake
@@ -30,14 +30,14 @@
 set(TFLU_ETHOSU_LIBS $<TARGET_FILE:ethosu_core_driver>)
 
 if(CORE_SOFTWARE_BACKEND STREQUAL NPU)
-    list(APPEND TFLU_TAGS "ARM_NPU")
+    list(APPEND TFLU_TAGS "ethos-u")
 endif()
 
 string(JOIN TFLU_TAGS " " TFLU_TAGS)
 
 # Command and target
 add_custom_target(tflu_gen ALL
-                  COMMAND make -j${J} -f ${TFLU_PATH}/tools/make/Makefile microlite TARGET=${TFLU_TARGET} TARGET_ARCH=${TFLU_TARGET_ARCH} CC_TOOL=${TFLU_CC} CXX_TOOL=${TFLU_CXX} AR_TOOL=${TFLU_AR} GENDIR=${TFLU_GENDIR} CMSIS_PATH=${CMSIS_PATH} ARM_NPU_PATH=${CORE_DRIVER_PATH} ETHOSU_LIBS=${TFLU_ETHOSU_LIBS} TAGS="${TFLU_TAGS}"
+                  COMMAND make -j${J} -f ${TFLU_PATH}/tools/make/Makefile microlite TARGET=${TFLU_TARGET} TARGET_ARCH=${TFLU_TARGET_ARCH} CC_TOOL=${TFLU_CC} CXX_TOOL=${TFLU_CXX} AR_TOOL=${TFLU_AR} GENDIR=${TFLU_GENDIR} CMSIS_PATH=${CMSIS_PATH} ETHOSU_DRIVER_PATH=${CORE_DRIVER_PATH} ETHOSU_DRIVER_LIBS=${TFLU_ETHOSU_LIBS} TAGS="${TFLU_TAGS}"
                   WORKING_DIRECTORY ${TENSORFLOW_PATH})
 
 # Create library and link library to custom target