Revert "bloonchipper: Reintroduce sleep lines to RO"

This reverts commit 5e2a0808b7dfc736676daf8ba4d6cf683076d961.

Reason for revert: It may broke CQ
BUG=b:195718112

Original change's description:
> bloonchipper: Reintroduce sleep lines to RO
>
> Change https://crrev.com/c/2673909 removed the sleep lines from RO
> in an effort to minimize the RO complexity.
> Most notably, this isolated the deep-sleep/low-power-idle
> logic to RW only.
>
> Unfortunately, the sleep lines also control whether the SPI host interface
> is listening, which allows it to ignore spurious communication.
>
> It seems safer to reinstate the the sleep line with low power idle
> active and directly disable CONFIG_LOW_POWER_IDLE in subsequent CL.
>
> We reinstate the sleep line gpio logic from the following:
> https://crrev.com/c5545464431669029f42829d542fa491d767ee5f/board/hatch_fp/board.c
> This is the parent commit to the CL that refactors the sleep lines.
>
> BRANCH=none
> BUG=b:178746753
> TEST=# Connect servo_micro to a dragonclaw board.
>      make proj-bloonchipper -j
>      sudo servod --board=dragonclaw
>      ./util/flash_ec --board=bloonchipper
>
>      dut-control fpmcu_slp:off fpmcu_slp_alt:off
>      dut-control pp3300_dx_mcu_mw # Should be around 20mw
>      dut-control fpmcu_slp:on fpmcu_slp_alt:off
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:off fpmcu_slp_alt:on
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:on fpmcu_slp_alt:on
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:off fpmcu_slp_alt:off
>
>      minicom -D$(dut-control -o raw_fpmcu_console_uart_pty)
>      > reboot ro
>      # Ctrl-A Q
>
>      dut-control fpmcu_slp:off fpmcu_slp_alt:off
>      dut-control pp3300_dx_mcu_mw # Should be around 20mw
>      dut-control fpmcu_slp:on fpmcu_slp_alt:off
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:off fpmcu_slp_alt:on
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:on fpmcu_slp_alt:on
>      dut-control pp3300_dx_mcu_mw # Should be less the 5mw
>      dut-control fpmcu_slp:off fpmcu_slp_alt:off
>
>      minicom -D$(dut-control -o raw_fpmcu_console_uart_pty)
>      > reboot
>      > fpenroll
>      > fpmatch
>      > reboot
>      # Ctrl-A Q
>
> Signed-off-by: Craig Hesling <hesling@chromium.org>
> Change-Id: I503cb3b62740300b265a4ddb165e29d9e36727fd
> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3012241
> Commit-Queue: Josie Nordrum <josienordrum@google.com>
> Reviewed-by: Josie Nordrum <josienordrum@google.com>

Bug: b:178746753
Change-Id: If610fdffaef778f26c712bbad360e84651df61bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3077589
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Hsu Wei-Cheng <mojahsu@chromium.org>
Auto-Submit: Hsu Wei-Cheng <mojahsu@chromium.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/board/hatch_fp/board_rw.h b/board/hatch_fp/board_rw.h
index 1bee6c947d..bcfa061b25 100644
--- a/board/hatch_fp/board_rw.h
+++ b/board/hatch_fp/board_rw.h
@@ -7,6 +7,7 @@
 #define __CROS_EC_BOARD_HATCH_FP_BOARD_RW_H
 
 void fps_event(enum gpio_signal signal);
+void slp_event(enum gpio_signal signal);
 
 void board_init_rw(void);