UPSTREAM: platform/chrome: cros_ec_proto: Upgrade get_next_event to v3

Upgrade EC_CMD_GET_NEXT_EVENT to version 3.

The max supported version will be v3. So, we speak v3 even if the EC
says it supports v4+.

(cherry picked from commit 106d6739)

Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Link: https://lore.kernel.org/r/20240604230837.2878737-1-dnojiri@chromium.org


[tzungbi: uint32_t -> u32 per suggested by checkpatch.pl]
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

Bug: 366098213
Test: boot Kyogre to login screen
Change-Id: I2ef6ec115710dd2a7c2f085ffb5896f08def9237
Signed-off-by: Wojciech Macek <wmacek@google.com>