Draft: linux-samsung-hero2lte: fix wifi firmware path and sync config with upstream

most important changes:

• change kernel sources to maintained https://github.com/8890q/android_kernel_samsung_universal8890
• sync with upstream, regenerated config (disable buggy zswap, enable wireguard and more)
• fix kstrtobool_from_user declaration mismatch
• remove unused legacy patches
• properly set wifi firmware path to /lib/firmware/postmarketos
• enable hero2lte_eur_open_04 variant dtb
• add config check for containers support