New package: mkbootimg-2021.04.27

[JamiKettunen]

abootimg simply doesn't cut it anymore for newer Android devices which have an updated boot.img header format with additional required configuration.

General

• This is a new package and it conforms to the quality requirements

Have the results of the proposed changes been tested?

• I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
• I generally don't use the affected packages but briefly tested this PR

[JamiKettunen]

Btw I'm happy to switch the build_style to gnu-makefile if I can somehow configure AR; without being able to tweak this the build fails and simply setting AR="$AR rc" or exporting it didn't help :/

[JamiKettunen]

I'll actually go ahead and close this (for now); I found out about Google's own mkbootimg Python scripts which may be a better choice to package in the long run.

After I have time again and can consider things I'll get back to this :)