fwk: diagnostic: should reset the diagnostic when power on the system

EC should reset the diagnostic wheh pressing the power button to power
on the system. The current EC code only resets the diagnostic when the
chipset state in G3.
This change adds the condition to reset the diagnostic if the chipset
state is S5.

BRANCH=fwk-main
BUG=https://app.clickup.com/t/86eu0bmgj
TEST=Boot into BIOS setup menu and press power button to shutdown the system.
     The multifunctional LEDs do not blink the diagnostic.
TEST=Remove the c cover and press the power button to power on the system
     1. Power on from G3 and wait for 90s. The multifunctional LEDs start
        blinking the diagnostic
     2. Power on from S5 and wait for 90s. The multifunctional LEDs start
        blinking the diagnostic

Signed-off-by: Josh Tsai <Josh_Tsai@compal.com>
(cherry picked from commit a8237eb)

Author: Josh-Tsai

zephyr/program/framework/src/power_button_x86.c

@@ -366,7 +366,19 @@ static void state_machine(uint64_t tnow)
 				tnext_state = tnow + PWRBTN_DELAY_T0;
 				pwrbtn_state = PWRBTN_STATE_T0;
 				set_pwrbtn_to_pch(0, 0);
-				cancel_diagnostics();
+				if (chipset_in_state(CHIPSET_STATE_ON)) {
+					/**
+					 * System in EFI mode (S0), press power button to shutdown
+					 * the system and cancel the diagnostics.
+					 */
+					cancel_diagnostics();
+				} else if (chipset_in_state(CHIPSET_STATE_SOFT_OFF))
+					/**
+					 * System in S5 state, press power button to start up the
+					 * system and reset the diagnostics.
+					 */
+					reset_diagnostics();
+
 			}
 		}
 		break;