Fix Controllers end command function names

src/battle_controller_player_partner.c

@@ -90,7 +90,7 @@ static void PlayerPartnerHandleBattleAnimation(void);
 static void PlayerPartnerHandleLinkStandbyMsg(void);
 static void PlayerPartnerHandleResetActionMoveSelection(void);
 static void PlayerPartnerHandleCmd55(void);
-static void nullsub_128(void);
+static void PlayerPartnerCmdEnd(void);
 
 static void PlayerPartnerBufferRunCommand(void);
 static void PlayerPartnerBufferExecCompleted(void);
@@ -167,7 +167,7 @@ static void (*const sPlayerPartnerBufferCommands[CONTROLLER_CMDS_COUNT])(void) =
     PlayerPartnerHandleLinkStandbyMsg,
     PlayerPartnerHandleResetActionMoveSelection,
     PlayerPartnerHandleCmd55,
-    nullsub_128
+    PlayerPartnerCmdEnd
 };
 
 // unknown unused data
@@ -1928,6 +1928,6 @@ static void PlayerPartnerHandleCmd55(void)
     gBattlerControllerFuncs[gActiveBattler] = sub_80587B0;
 }
 
-static void nullsub_128(void)
+static void PlayerPartnerCmdEnd(void)
 {
 }