util/riscvtools: Rename to util/riscv/

There's no good reason to use the more complicated name.

Change-Id: I515e2df3b87580ddd31d18fe63451a98e92ead61
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/25700
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/riscv/spike-elf.ld

@@ -0,0 +1,15 @@
+/* See make-spike-elf.sh */
+
+ENTRY(_start);
+SECTIONS
+{
+	. = 0x80000000;
+	_start = .;
+	.data : {
+		*(.data)
+	}
+
+	tohost = .;
+	. = . + 8;
+	fromhost = .;
+}