Move more strings to PROGMEM

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

@@ -1095,7 +1095,7 @@
     SERIAL_PROTOCOLLNPAIR("UBL object count: ", (int)ubl_cnt);
 
     #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT)
-      SERIAL_PROTOCOL("planner.z_fade_height : ");
+      SERIAL_PROTOCOLPGM("planner.z_fade_height : ");
       SERIAL_PROTOCOL_F(planner.z_fade_height, 4);
       SERIAL_EOL();
     #endif

Marlin/src/feature/dac/stepper_dac.cpp

@@ -114,7 +114,7 @@ void dac_print_values() {
   SERIAL_ECHOPAIR(" (",   dac_amps(Z_AXIS));
   SERIAL_ECHOPAIR(") E:", dac_perc(E_AXIS));
   SERIAL_ECHOPAIR(" (",   dac_amps(E_AXIS));
-  SERIAL_ECHOLN(")");
+  SERIAL_ECHOLNPGM(")");
 }
 
 void dac_commit_eeprom() {