Revert "omap: cpu: smp: fix preempt leak in the cpuidle path invoked from"

This reverts commit e735001729704971942ee1ef48db0a1f6b4747c5.
Revert "omap: cpu: smp: try fixing scheduling while atomic"

This reverts commit 7fcd241ba36d476904cf8b70ad7debee50f2fc7a.
omap: cpu: smp: fix preempt leak in the cpuidle path invoked from
cpu-hotplug
log:
BUG: scheduling while atomic: swapper/0/0x00000002
<d>Modules linked in:
Backtrace:
[<c0024f90>] (dump_backtrace+0x0/0x110) from [<c01762c4>] (dump_stack+0x18/0x1c)
 r7:c0218cc4 r6:c0341f00 r5:c7836000 r4:00000000
[<c01762ac>] (dump_stack+0x0/0x1c) from [<c003d94c>] (__schedule_bug+0x60/0x70)
[<c003d8ec>] (__schedule_bug+0x0/0x70) from [<c0176914>] (schedule+0x98/0x7b8)
 r5:c7836000 r4:c7836000
[<c017687c>] (schedule+0x0/0x7b8) from [<c00228c4>] (cpu_idle+0xb4/0xd4)
# [<c0022810>] (cpu_idle+0x0/0xd4) from [<c01744e8>] (secondary_start_kernel+0xe0/0xf0)
 r5:c7836000 r4:c020a220
[<c0174408>] (secondary_start_kernel+0x0/0xf0) from [<c0031150>] (set_cpu_power_state+0x40/0x44)
 r7:c0218cc4 r6:00000001 r5:00000001 r4:c7836000