fix: Fix ShinaSystem PMM-300Z2 and PMM-300Z3 ac frequency (#8094)

- PMM-300Z2 and PMM-300Z3 do not support acFrequencyDivisor and acFrequencyMultiplier attributes.

Author: shinasys

src/devices/shinasystem.ts

@@ -586,15 +586,15 @@ const definitions: DefinitionWithExtend[] = [
         vendor: 'ShinaSystem',
         ota: ota.zigbeeOTA,
         description: 'SiHAS energy monitor',
-        extend: [electricityMeter({acFrequency: true, powerFactor: true}), temperature()],
+        extend: [electricityMeter({acFrequency: {multiplier: 1, divisor: 10}, powerFactor: true}), temperature()],
     },
     {
         zigbeeModel: ['PMM-300Z3'],
         model: 'PMM-300Z3',
         vendor: 'ShinaSystem',
         ota: ota.zigbeeOTA,
         description: 'SiHAS 3phase energy monitor',
-        extend: [electricityMeter({acFrequency: true, powerFactor: true}), temperature()],
+        extend: [electricityMeter({acFrequency: {multiplier: 1, divisor: 10}, powerFactor: true}), temperature()],
     },
     {
         zigbeeModel: ['DLM-300Z'],