soc: qcom: spm: Fix idle on THUMB2 kernels

The ifc6410 firmware always enters the kernel in ARM state from
deep idle. Use the cpu_resume_arm() wrapper instead of
cpu_resume() to property switch into the THUMB2 state when we
wake up from idle.

This fixes a problem reported by Kevin Hilman on next-20150601
where the ifc6410 fails to boot a THUMB2 kernel because the
platform's firmware always enters the kernel in ARM mode from
deep idle states.

Reported-by: Kevin Hilman <[e-mail]>
Cc: Ard Biesheuvel <[e-mail]>
Cc: Lina Iyer <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>
Signed-off-by: Kevin Hilman <[e-mail]>

drivers/soc/qcom/spm.c

···
 		/* We have atleast one power down mode */
 		cpumask_clear(&mask);
 		cpumask_set_cpu(cpu, &mask);
-		qcom_scm_set_warm_boot_addr(cpu_resume, &mask);
+		qcom_scm_set_warm_boot_addr(cpu_resume_arm, &mask);
 	}
 
 	per_cpu(qcom_idle_ops, cpu) = fns;