DynamicTablesPkg: Fix assert in CmObject parser #1

Job	Run time
Analyze (ArmPkg, IA32,X64)	11m 55s
Analyze (CryptoPkg, IA32)	28m 13s
Analyze (CryptoPkg, X64)	30m 17s
Analyze (DynamicTablesPkg, IA32,X64)	10m 20s
Analyze (FatPkg, IA32,X64)	9m 2s
Analyze (FmpDevicePkg, IA32,X64)	11m 15s
Analyze (IntelFsp2Pkg, IA32,X64)	11m 54s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	15m 15s
Analyze (MdeModulePkg, IA32)	25m 44s
Analyze (MdeModulePkg, X64)	24m 28s
Analyze (MdePkg, IA32,X64)	18m 59s
Analyze (PcAtChipsetPkg, IA32,X64)	16m 45s
Analyze (PrmPkg, IA32,X64)	20m 4s
Analyze (SecurityPkg, IA32,X64)	18m 48s
Analyze (ShellPkg, IA32,X64)	20m 17s
Analyze (SourceLevelDebugPkg, IA32,X64)	18m 15s
Analyze (StandaloneMmPkg, IA32,X64)	15m 29s
Analyze (UefiCpuPkg, IA32,X64)	11m 48s
Analyze (UnitTestFrameworkPkg, IA32,X64)	17m 56s
	5h 36m 44s

Provide feedback