Uknown -> Unknown (#36788)

* Fixing typos

* Restyled by clang-format

---------

Co-authored-by: Restyled.io <commits@restyled.io>

Author: woody-apple

src/darwin/Framework/CHIP/MTRDeviceDataValidation.mm

@@ -152,7 +152,7 @@ BOOL MTREventReportIsWellFormed(NSArray<MTRDeviceResponseValueDictionary> * repo
                 break;
             }
             default:
-                MTR_LOG_ERROR("Uknown time type for event report: %@", item);
+                MTR_LOG_ERROR("Unknown time type for event report: %@", item);
                 return NO;
             }
         }

src/darwin/Framework/CHIP/ServerEndpoint/MTRServerAccessControl.mm

@@ -93,7 +93,7 @@ CHIP_ERROR Check(const SubjectDescriptor & subjectDescriptor, const RequestPath
                 }
                 break;
             default:
-                MTR_LOG_ERROR("Uknown granted privilege %u, ignoring", grant.grantedPrivilege);
+                MTR_LOG_ERROR("Unknown granted privilege %u, ignoring", grant.grantedPrivilege);
                 break;
             }