ARM: imx: use raw_spin_lock instead of spin_lock

CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         5.15.78-rt48-yocto-preempt-rt #1
Hardware name: Freescale i.MX7 Dual (Device Tree)
[<80110f4c>] (unwind_backtrace) from [<8010aef8>] (show_stack+0x18/0x1c)
[<8010aef8>] (show_stack) from [<80be4998>] (dump_stack_lvl+0x40/0x4c)
[<80be4998>] (dump_stack_lvl) from [<8015297c>] (__might_resched+0x16c/0x1f0)
[<8015297c>] (__might_resched) from [<80bf2d8c>] (rt_spin_lock+0x34/0x80)
[<80bf2d8c>] (rt_spin_lock) from [<8011e350>] (imx_set_cpu_jump+0x20/0x70)
[<8011e350>] (imx_set_cpu_jump) from [<8011bd64>] (imx7d_enter_low_power_idle+0x2e4/0x30c)
[<8011bd64>] (imx7d_enter_low_power_idle) from [<80897bb8>] (cpuidle_enter_state+0xe8/0x2f0)
[<80897bb8>] (cpuidle_enter_state) from [<80897e18>] (cpuidle_enter+0x3c/0x50)
[<80897e18>] (cpuidle_enter) from [<8015a748>] (do_idle+0x234/0x264)
[<8015a748>] (do_idle) from [<8015aa88>] (cpu_startup_entry+0x20/0x28)
[<8015aa88>] (cpu_startup_entry) from [<81001138>] (start_kernel+0x5b8/0x69c)
[<81001138>] (start_kernel) from [<00000000>] (0x0)

Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>