ArmPkg: Update Generic Watchdog PCD Type #7353

Job	Run time
Analyze (ArmPkg, IA32,X64)	3m 10s
Analyze (CryptoPkg, IA32)	13m 9s
Analyze (CryptoPkg, X64)	18m 4s
Analyze (DynamicTablesPkg, IA32,X64)	10m 13s
Analyze (FatPkg, IA32,X64)	9m 32s
Analyze (FmpDevicePkg, IA32,X64)	10m 38s
Analyze (IntelFsp2Pkg, IA32,X64)	10m 29s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	8m 31s
Analyze (MdeModulePkg, IA32)	14m 37s
Analyze (MdeModulePkg, X64)	15m 36s
Analyze (MdePkg, IA32,X64)	11m 7s
Analyze (PcAtChipsetPkg, IA32,X64)	10m 43s
Analyze (PrmPkg, IA32,X64)	6m 37s
Analyze (SecurityPkg, IA32,X64)	9m 6s
Analyze (ShellPkg, IA32,X64)	9m 16s
Analyze (SourceLevelDebugPkg, IA32,X64)	9m 36s
Analyze (StandaloneMmPkg, IA32,X64)	8m 42s
Analyze (UefiCpuPkg, IA32,X64)	8m 48s
Analyze (UnitTestFrameworkPkg, IA32,X64)	9m 29s
	3h 17m 23s

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