zephyr: fix espi shim
zephyr: fix espi shim

We were casting the int to a pointer. Needed '&'.

BRANCH=none
BUG=none
TEST=zmake testall (but it still fails on missing cros_kb_raw.h

Signed-off-by: Yuval Peress <50dc11c009bd4d7e9d9d15a383c1743ce5ee82ef@chromium.org>
Change-Id: I9d61fb27826c581214d5557364a97e6ea9d215e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2567583
Reviewed-by: Simon Glass <c00b0378376498bd9cd974c388df8854c0131d27@chromium.org>
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Commit-Queue: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec