[patch] MdePkg/BasePeCoffLib: Correct the address of RelocBaseEnd

[Dandan Bi <dandan.bi@intel.com>]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1426

When calculating the address of RelocBaseEnd,
the RelocBase address is ImageBase + RelocDir->VirtualAddress,
the size of RelocDir is RelocDir->Size.
So the RelocBaseEnd address is:
ImageBase + RelocDir->VirtualAddress + RelocDir->Size - 1
not
ImageBase + RelocDir->VirtualAddress + RelocDir->Size

This patch is to fix this issue when call PeCoffLoaderImageAddress
function to calculate the address of RelocBaseEnd.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
 MdePkg/Library/BasePeCoffLib/BasePeCoff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
index d9c94b89bd..1bd079ad6a 100644
--- a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
+++ b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
@@ -1741,11 +1741,11 @@ PeCoffLoaderRelocateImageForRuntime (
   //
   if (NumberOfRvaAndSizes > EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC) {
     RelocDir      = DataDirectory + EFI_IMAGE_DIRECTORY_ENTRY_BASERELOC;
     RelocBase     = (EFI_IMAGE_BASE_RELOCATION *) PeCoffLoaderImageAddress (&ImageContext, RelocDir->VirtualAddress, 0);
     RelocBaseEnd  = (EFI_IMAGE_BASE_RELOCATION *) PeCoffLoaderImageAddress (&ImageContext,
-                                                                            RelocDir->VirtualAddress + RelocDir->Size,
+                                                                            RelocDir->VirtualAddress + RelocDir->Size - 1,
                                                                             0
                                                                             );
   } else {
     //
     // Cannot find relocations, cannot continue to relocate the image, ASSERT for this invalid image.
-- 
2.18.0.windows.1