esp8266 softap waiting all the time

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INSTRUCTIONS
============
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1. Follow the checklist under Basic Infos and fill in the [ ] spaces with an X.
2. Fill in all the fields under Platform and Settings in IDE marked with [ ] (pick the correct option for you in each case, delete the others).
3. If you haven't already done so, test your issue against current master branch (aka latest git), because it may have been already fixed.
4. Describe your problem.
5. If you have a STACK DUMP decode it:

https://arduino-esp8266.readthedocs.io/en/latest/Troubleshooting/stack_dump.html

6. Include a Minimal Complete Reproducible Example sketch that shows your issue. Do not include your entire project, or a huge piece of code.
7. Include debug messages:

https://arduino-esp8266.readthedocs.io/en/latest/Troubleshooting/debugging.html

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9. Delete these instructions from the above to the below marker lines before submitting this issue.

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### Basic Infos

- [x] This issue complies with the [issue POLICY doc](https://github.com/esp8266/Arduino/blob/master/POLICY.md).
- [x] I have read the documentation at [readthedocs](https://arduino-esp8266.readthedocs.io/en/latest) and the issue is not addressed there.
- [x] I have tested that the issue is present in current master branch (aka latest git).
- [x] I have searched the issue tracker for a similar issue.
- [ ] If there is a stack dump, I have decoded it.
- [x] I have filled out all fields below.

#### Platform

- Hardware: [ESP-12]
- Core Version: [latest]
- Development Env: [Arduino IDEr]
- Operating System: [MacOS]

### Settings in IDE

- Module: [Generic ESP8266 Module]
- Flash Mode: [qio|dio|other]
- Flash Size: [4MB]
- lwip Variant: [v1.4|v2 Lower Memory|Higher Bandwidth]
- Reset Method: [ck|nodemcu]
- Flash Frequency: [40Mhz]
- CPU Frequency: [80Mhz]
- Upload Using: [SERIAL]
- Upload Speed: [115200] (serial upload only)

### Problem Description

Iphone connection softap has been waiting for a long time, arduino firmware doesn't work well. Nodemcu firmware can work.

### [MCVE](https://stackoverflow.com/help/mcve) Sketch

```cpp
#include
#include

IPAddress local_IP(192,168,4,1);
IPAddress gateway(192,168,4,10);
IPAddress subnet(255,255,255,0);

void setup() {
Serial.begin(115200);
Serial.println();

for(uint8_t t = 3; t > 0; t--) {
Serial.printf("[SETUP] BOOT WAIT %d...\n", t);
Serial.flush();
delay(1000);
}

Serial.print("Setting soft-AP configuration ... ");
Serial.println(WiFi.softAPConfig(local_IP, gateway, subnet) ? "Ready" : "Failed!");

Serial.print("Setting soft-AP ... ");
Serial.println(WiFi.softAP("A1234", "12345678") ? "Ready" : "Failed!");

Serial.print("Soft-AP IP address = ");
Serial.println(WiFi.softAPIP());
}

void loop() {
}
```

### Debug Messages

```
wifi evt: 7
wifi evt: 7
err already associed!
station: f8:95:ea:86:9b:ee leave, AID = 1
rm 1
wifi evt: 6
wifi evt: 7
```

```
wifi evt: 7
wifi evt: 7
wifi evt: 7
add 1
aid 1
station: f8:95:ea:86:9b:ee join, AID = 1
wifi evt: 5
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 9
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7

```