fwk: tulip: resume from suspend can enter epr mode

Previously, entering EPR mode was only allowed when
the system was fully in the S0 state.
However, during resume from S0ix → S0, the system transitions
through intermediate states before reaching S0.
Since the original condition strictly checked for CHIPSET_STATE_ON,
the EC blocked EPR entry during this transition, causing the system
to remain in SPR mode after resume.

BRANCH=fwk-tulip-29169
BUG=https://app.clickup.com/t/86evdvfx2
TEST=1.connect 180w/240w AC
2.system enter sleep, check power-z vbus=20v
3.resume from sleep, can enter epr and power-z vbus=36v or48v

Signed-off-by: johnwc_yeh <JohnWC_Yeh@compal.com>

Author: JohnWC-Yeh

zephyr/program/framework/src/cypd_ccg8.c

@@ -547,7 +547,7 @@ static void buck_ready_for_epr(void)
 	int mode = is_enter_epr ? LEVEL_BUCK_ENTER_EPR : LEVEL_BUCK_EXIT_EPR;
 
 	/* make sure enter EPR mode only process in S0 state */
-	if (is_enter_epr && (!chipset_in_state(CHIPSET_STATE_ON) ||
+	if (is_enter_epr && (!chipset_in_or_transitioning_to_state(CHIPSET_STATE_ON) ||
 		!extpower_is_present())) {
 		CPRINTS("Enter EPR aborted: not in S0 or no power");
 		epr_buck_ctx.phase = BUCK_PHASE_IDLE;