[logging] fix build with OPENTHREAD_CONFIG_ENABLE_DYNAMIC_LOG_LEVEL=1 (#2727)

src/cli/cli_uart.cpp

@@ -201,7 +201,7 @@ otError Uart::ProcessCommand(void)
 #if OPENTHREAD_ENABLE_MULTIPLE_INSTANCES
         /* TODO: how exactly do we get the instance here? */
 #else
-    otLogInfoCli(&Instance::Get(), "execute command: %s", mRxBuffer);
+    otLogInfoCli(Instance::Get(), "execute command: %s", mRxBuffer);
 #endif
 #endif
     mInterpreter.ProcessLine(mRxBuffer, mRxLength, *this);

src/core/meshcop/energy_scan_client.cpp

@@ -41,6 +41,7 @@
 #include "common/code_utils.hpp"
 #include "common/debug.hpp"
 #include "common/encoding.hpp"
+#include "common/instance.hpp"
 #include "common/logging.hpp"
 #include "meshcop/meshcop.hpp"
 #include "meshcop/meshcop_tlvs.hpp"