tools/nxstyle: indent code against its enclosing brace, not modulo 4

[raiden00pl]

Summary

tools/nxstyle: indent code against its enclosing brace, not modulo 4

Impact

nuttx standard compatibility

Testing

correctly detect wrong alignment like below:

int demo(int a)
{
  switch (a)
    {
        case 1:      /* case label belongs at column 6 */
          a++;
          break;

      default:
              a--;
          break;
    }

      if (a > 0)     /* statement belongs at column 2 */
        {
          a = 0;
        }

  return a;
}

[github-actions]

MemBrowse Memory Report

No memory changes detected for:

• arduino-mega2560
• esp32-devkitc
• hifive1-revb
• mirtoo
• qemu-armv8a
• qemu-intel64
• rx65n-rsk2mb
• s698pm-dkit
• stm32-nucleo-f103rb