soc: arm: cypress: Fix psoc6 irq priority #37609
                
     Merged
            
            
          
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PSoC-6 have different priority bit masks for cortex-m0+ and cortex-m4.
M0: 0-3 (2 bits of NVIC prio, no prio reserved by the kernel)
M4: 0-6 (3 bits of NVIC prio, one level reserved by the kernel)
The current macro that gets priority level value from devicetree apply same value from cortex-m4 on cortex-m0+. This add missing indirection to get from intmux node the correct cortex-m0+ priority level value.
Signed-off-by: Gerson Fernando Budke [email protected]