zephyr: eSPI: disable interrupt before sysjump
zephyr: eSPI: disable interrupt before sysjump

This commit disables the host interrupts before sysjump. This prevents
the ISR from trigger during sysjump to cause the unexpected symptom.

BANCH=none
BUG=b:246963730
TEST=in skyrim, the hostcmd broken after sysjump symptom is fixed by
the related PR and CL.

Signed-off-by: Jun Lin <4865d89268068846db8afe2dcacc793288c792a0@nuvoton.com>
Change-Id: I861c907b0c251c642ae3e59d1a6553c3c52be38a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3937849
Reviewed-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>
Reviewed-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>
Code-Coverage: Zoss <345cf107e82c70959d46f59d98bddc98ce458aff@prod.google.com>
Reviewed-by: Fabio Baltieri <1c55e39c05d9ab42261288cf330256b2af6ba179@google.com>
Tested-by: CH Lin <49997681dc186e71092740314bf6c6feeca6e227@nuvoton.com>
Commit-Queue: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>

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