alif: Fix ALIF_TOOLS to use $(TOP) and remove unused ALIF_CONFIG.

The ALIF_CONFIG was changed some time ago to `alif_cfg.json.in`.

Signed-off-by: Damien George <damien@micropython.org>

Author: dpgeorge

ports/alif/Makefile

@@ -5,7 +5,7 @@ MCU_CORE ?= M55_HP
 GIT_SUBMODULES += lib/tinyusb lib/alif_ensemble-cmsis-dfp lib/alif-security-toolkit
 PORT ?= /dev/ttyACM0
 
-ALIF_TOOLS ?= ../../lib/alif-security-toolkit/toolkit
+ALIF_TOOLS ?= $(TOP)/lib/alif-security-toolkit/toolkit
 
 JLINK_CMD_PREFIX = \
 ExitOnError 1\n\

ports/alif/alif.mk

@@ -30,7 +30,6 @@ ALIF_DFP_REL_HERE ?= $(TOP)/lib/alif_ensemble-cmsis-dfp
 CMSIS_DIR ?= $(TOP)/lib/cmsis/inc
 
 MCU_CORE ?= M55_HP
-ALIF_CONFIG ?= mcu/$(MCU_CORE)_cfg.json
 LD_FILE ?= mcu/ensemble.ld.S
 
 INC += -I.