Initial support for STM32 L5 & U5 devices and minor changes

[Nightwalker-87]

• Initial support for STM32 L5 & U5 devices (Closes [feature] Support for STM32L5 / STM32L562E-DK board: read_debug32 returns only 0 #1005) (Closes [feature] Support for STM32U5-series #1096) (Reference initial l5 support #1247) (Closes Are chip IDs 482 and 497 known and should be supported? #1301)
• Updated CHANGELOG.md
• Updating windows signal handling to not terminate the application before clean-up.
• Log message improvements for st-flash
• Fix for option bytes on STM32G031G8 (Closes [STM32G031G8]: BOOT_LOCK is not possible to change on option bytes address 0x1FFF7870  #1194)

[Nightwalker-87]

@Ant-ON Could you give some remarks on this, tell what is still missing and give an overview on what remains to be addressed? This should include the previous attempt of @Evidlo from #1247, but should remain as a draft until tested with real hardware.

[Nightwalker-87]

We need someone with L5 hardware here for final testing.

[Ant-ON]

@Nightwalker-87 I think L5 support also works like U5. And the problems with the previous PR were due to the fact that the dual bank mode was enabled on the board. To solve the problem of the previous PR, you need to add code below to the common.c file after similar code for STM32_CHIPID_G4_CAT3.

  if (sl->chip_id == STM32_CHIPID_L5x2) {
    uint32_t flash_optr;
    stlink_read_debug32(sl, STM32L5_FLASH_OPTR, &flash_optr);

    if (sl->flash_size == 512*1024 && (flash_optr & (1 << 22)) != 0) {
      sl->flash_pgsz = 0x800;
    }
  }

[Nightwalker-87]

ok, I entered these lines there.

[slyshykO]

In this PR there is a removed build for Ubuntu 18. The minimum version remaining is Ubuntu 20.04 with libusb 1.0.23.
So I suggest increasing requirements to libusb according to CI in https://github.com/stlink-org/stlink/blob/f2023_1/src/stlink-lib/libusb_settings.h#L37.

[Nightwalker-87]

In this PR there is a removed build for Ubuntu 18. The minimum version remaining is Ubuntu 20.04 with libusb 1.0.23. So I suggest increasing requirements to libusb according to CI in https://github.com/stlink-org/stlink/blob/f2023_1/src/stlink-lib/libusb_settings.h#L37.

I forgot about that ... 😥