apply driver update only to the product it is intended for

[wfeldt]

Problem

Currently, Agama applies driver updates regardless whether it is intended for a specific product or not.
This is different than what YaST did.

This makes it sometimes impossible to hand out fixes in the form of a DUD that can be used for more than one product.

This patch restores the previous behavior. Since there is no pre-configured product tag available (it used to be stored in linuxrc.config) , this patch uses ID and VERSION_ID from /etc/os-release to construct a dist tag.

Here are some examples to make things clear:

/linux/suse/ARCH-DIST

# SLE-15 (old)
/linux/suse/x86_64-sles15

# SLES 16.1
/linux/suse/x86_64-sles16.1

# Leap 16.1
/linux/suse/x86_64-opensuse-leap16.1

# Tumbleweed
/linux/suse/x86_64-opensuse-tumbleweed

Solution

Use ID and VERSION_ID from /etc/os-release to match the product stored in the DUD.

Testing

• Tested manually