SH: cpuidle: remove CPUIDLE_DRIVER_STATE_START usage

The CPUIDLE_DRIVER_STATE_START constant is only set when the kernel compilation
option CONFIG_ARCH_HAS_CPU_RELAX is set, but this is only relatated to x86, so
it is always zero.

Remove the reference to this constant in the code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

arch/sh/kernel/cpu/shmobile/cpuidle.c

@@ -63,9 +63,7 @@ void sh_mobile_setup_cpuidle(void)
 	struct cpuidle_device *dev = &cpuidle_dev;
 	struct cpuidle_driver *drv = &cpuidle_driver;
 	struct cpuidle_state *state;
-	int i;
-
-	i = CPUIDLE_DRIVER_STATE_START;
+	int i = 0;
 
 	state = &drv->states[i++];
 	snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
@@ -77,7 +75,7 @@ void sh_mobile_setup_cpuidle(void)
 	state->flags |= CPUIDLE_FLAG_TIME_VALID;
 	state->enter = cpuidle_sleep_enter;
 
-	drv->safe_state_index = i-1;
+	drv->safe_state_index = 0;
 
 	if (sh_mobile_sleep_supported & SUSP_SH_SF) {
 		state = &drv->states[i++];