Suggestion from web: Linux/Aidra - ARM/ELF

[Binary](https://github.com/avast-tl/retdec/files/1703246/bin.zip) sent to us by user through https://retdec.com/.

Check and improve overall output quality. This is a real world Linux malware. This sample might already be in our regression tests.

Start by downloading the attached Linux/ARM ELF binary and checking whether this sample is already covered by the project's regression tests. Compare the current decompiler output with the expected output and determine which aspects of overall quality need improvement; completion is not defined beyond improving the output for this real-world malware sample.

Written by the indexing model from the issue text.