FmpDevicePkg: Fix spelling errors

https://bugzilla.tianocore.org/show_bug.cgi?id=2262

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

FmpDevicePkg/Library/CapsuleUpdatePolicyLibOnProtocol/CapsuleUpdatePolicyLibOnProtocol.c

@@ -37,7 +37,7 @@ LookupCapsuleUpdatePolicyProtocol (
     return TRUE;
   }
   Status = gBS->LocateProtocol (
-                  &gEdkiiCapuleUpdatePolicyProtocolGuid,
+                  &gEdkiiCapsuleUpdatePolicyProtocolGuid,
                   NULL,
                   (VOID **)&mCapsuleUpdatePolicy
                   );