util/nvmutil: fix name size in fs_resolve_at

it's capped at 256 bytes

we need it configurable and in sync with
other limits in the code.

Signed-off-by: Leah Rowe <leah@libreboot.org>

util/libreboot-utils/lib/file.c

@@ -787,7 +787,12 @@ fs_resolve_at(int dirfd, const char *path, int flags)
 	int nextfd = -1;
 	int curfd;
 	const char *p;
-	char name[256];
+#if defined(PATH_LEN) && \
+    ((PATH_LEN) >= 256)
+	char name[PATH_LEN];
+#else
+	char name[4096];
+#endif
 	int saved_errno = errno;
 	int r;
 	int is_last;