rmodule: Fix 64-bit related typecast errors

BUG=None
BRANCH=None
TEST=Compiles successfully

Original-Change-Id: I5687c24fcecd26e7656317eb8dde0f1f798e49fc
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/209335
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 707cb3e274aa7eabc8e1792fc09d05b4c9e95913)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I2a40acbb14a5ba5c6e4d552b67a331256567d5b4
Reviewed-on: http://review.coreboot.org/8220
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
1 file changed