[Patch] UefiCpuPkg RegisterCpuFeaturesLib: Fix buffer pointer error usage.

[Eric Dong <eric.dong@intel.com>]

Current code allocate buffer for the pointer which later get value
from PCD database. but current code error use "=" for this case.
Use CopyMem instead to fix it.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Shao, Ming <ming.shao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <eric.dong@intel.com>
---
 UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
index 474aea3..77834ae 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
@@ -66,7 +66,7 @@ GetSupportPcds (
   BitMaskSize = PcdGetSize (PcdCpuFeaturesSupport);
   SupportBitMask = AllocateZeroPool (BitMaskSize);
   ASSERT (SupportBitMask != NULL);
-  SupportBitMask = (UINT8 *) PcdGetPtr (PcdCpuFeaturesSupport);
+  CopyMem (SupportBitMask, (UINT8 *) PcdGetPtr (PcdCpuFeaturesSupport), BitMaskSize);
 
   return SupportBitMask;
 }
@@ -87,7 +87,7 @@ GetConfigurationPcds (
   BitMaskSize = PcdGetSize (PcdCpuFeaturesUserConfiguration);
   SupportBitMask = AllocateZeroPool (BitMaskSize);
   ASSERT (SupportBitMask != NULL);
-  SupportBitMask = (UINT8 *) PcdGetPtr (PcdCpuFeaturesUserConfiguration);
+  CopyMem (SupportBitMask, (UINT8 *) PcdGetPtr (PcdCpuFeaturesUserConfiguration), BitMaskSize);
 
   return SupportBitMask;
 }
-- 
2.7.0.windows.1