RISCV: Fix InternalLongJump to return correct value #204

Job	Run time
Analyze (ArmPkg, IA32,X64)	11m 52s
Analyze (CryptoPkg, IA32)	31m 18s
Analyze (CryptoPkg, X64)	27m 30s
Analyze (DynamicTablesPkg, IA32,X64)	12m 24s
Analyze (FatPkg, IA32,X64)	16m 7s
Analyze (FmpDevicePkg, IA32,X64)	18m 7s
Analyze (IntelFsp2Pkg, IA32,X64)	19m 18s
Analyze (IntelFsp2WrapperPkg, IA32,X64)	19m 17s
Analyze (MdeModulePkg, IA32)	30m 46s
Analyze (MdeModulePkg, X64)	31m 40s
Analyze (MdePkg, IA32,X64)	23m 51s
Analyze (PcAtChipsetPkg, IA32,X64)	20m 52s
Analyze (PrmPkg, IA32,X64)	21m 26s
Analyze (SecurityPkg, IA32,X64)	24m 46s
Analyze (ShellPkg, IA32,X64)	19m 54s
Analyze (SourceLevelDebugPkg, IA32,X64)	19m 29s
Analyze (StandaloneMmPkg, IA32,X64)	15m 31s
Analyze (UefiCpuPkg, IA32,X64)	19m 39s
Analyze (UnitTestFrameworkPkg, IA32,X64)	20m 1s
	6h 43m 48s

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