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

device/testing/linux-samsung-hero2lte/01-kstrtobool_from_user.patch

+--- a/drivers/gpu/arm/t8xx/r22p0/mali_kbase_core_linux.c	2022-12-10 16:42:44.274410909 +0100
++++ b/drivers/gpu/arm/t8xx/r22p0/mali_kbase_core_linux.c	2022-12-10 16:44:08.294593787 +0100
+@@ -278,7 +278,7 @@
+  * Older versions, before v4.6, of the kernel doesn't have
+  * kstrtobool_from_user(), except longterm 4.4.y which had it added in 4.4.28
+  */
+-static int kstrtobool_from_user(const char __user *s, size_t count, bool *res)
++int kstrtobool_from_user(const char __user *s, size_t count, bool *res)
+ {
+ 	char buf[32];
+