ArmPkg: ArmFfaStandaloneMmLib: Fix non-FFA path #135

Job	Run time
Analyze (CryptoPkg, IA32)	17m 34s
Analyze (CryptoPkg, X64)	20m 14s
Analyze (DynamicTablesPkg, IA32,X64)	10m 37s
Analyze (FatPkg, IA32,X64)	9m 29s
Analyze (FmpDevicePkg, IA32,X64)	9m 42s
Analyze (IntelFsp2Pkg, IA32,X64)	9m 31s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	12m 37s
Analyze (MdeModulePkg, IA32)	15m 25s
Analyze (MdeModulePkg, X64)	17m 37s
Analyze (MdePkg, IA32,X64)	12m 4s
Analyze (PcAtChipsetPkg, IA32,X64)	9m 32s
Analyze (PrmPkg, IA32,X64)	10m 58s
Analyze (SecurityPkg, IA32,X64)	13m 23s
Analyze (ShellPkg, IA32,X64)	15m 23s
Analyze (SourceLevelDebugPkg, IA32,X64)	8m 42s
Analyze (StandaloneMmPkg, IA32,X64)	8m 40s
Analyze (UefiCpuPkg, IA32,X64)	15m 1s
Analyze (UnitTestFrameworkPkg, IA32,X64)	11m 58s
	3h 48m 27s

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