UefiPayloadPkg: Fix Coverity report defect

https://bugzilla.tianocore.org/show_bug.cgi?id=4018
Coverity report FORWARD_NULL and OVERFLOW_BEFORE_WIDEN potential defect
in UefiPayloadPkg.

Signed-off-by: Gregx Yeh <gregx.yeh@intel.com>
Reviewed-by: Guo Dong <guo.dong@intel.com>
Reviewed-by: James Lu <james.lu@intel.com>

UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c

@@ -232,11 +232,11 @@ PciHostBridgeFreeRootBridges (
   UINTN            Count
   )
 {
-  if ((Bridges == NULL) && (Count == 0)) {
+  if ((Bridges == NULL) || (Count == 0)) {
     return;
   }
 
-  ASSERT (Bridges != NULL && Count > 0);
+  ASSERT (Bridges != NULL || Count > 0);
 
   do {
     --Count;