zephyr: lazor: enable SHI
zephyr: lazor: enable SHI

BUG=b:182600858
BRANCH=none
TEST=AP-EC host commands communication is functional.

Signed-off-by: Jun Lin <4865d89268068846db8afe2dcacc793288c792a0@nuvoton.com>
Change-Id: Ic9b75f1bea988a0cc6ef8193490daea475caa34e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2786889
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Commit-Queue: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Tested-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>

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