util/e6400-flash-unlock: Rename to dell-flash-unlock

This more accurately describes the scope of the utility.

Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>

util/dell-flash-unlock/Makefile

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2023 Nicholas Chin
+
+CC=cc
+CFLAGS=-Wall -Wextra -Werror -O2 -pedantic
+ifeq ($(shell uname), OpenBSD)
+	CFLAGS += -l$(shell uname -p)
+endif
+SRCS=dell_flash_unlock.c accessors.c
+
+all: $(SRCS) accessors.h
+	$(CC) $(CFLAGS) $(SRCS) -o dell_flash_unlock
+
+clean:
+	rm -f dell_flash_unlock