tools/minidump: support multiple ELF files

[yf13]

Summary

This adds support of multiple ELF files so that to help Kernel build dump analysis using both nuttx and app ELF files.

Impact

minidump tool user

Testing

checked with rv-virt 64 bit kernel build.

[yf13]

Looks like that CI check is having trouble with sam4s-xplained/nsh on Linux(arm05)?

 Configuration/Tool: sam4s-xplained/nsh,CONFIG_ARM_TOOLCHAIN_GNU_EABI
------------------------------------------------------------------------------------
  Cleaning...
  Configuring...
/usr/bin/bash: line 1: arm-nuttx-elf-gcc: command not found

[simbit18]

I think it is related to download problems https://github.com/apache/nuttx/actions/runs/8447771991/job/23138744174?pr=12010#step:7:594

Each download failed!

    error: downloading 'https://github.com/OpenAMP/libmetal/archive/v2022.10.0.zip' failed
          status_code: 28
          status_string: "Timeout was reached"
          log:
          --- LOG BEGIN ---
            Trying 140.82.114.3:443...

  Connection timed out after 30001 milliseconds

  Closing connection 0

[xiaoxiang781216]

let's retrigger ci again.