linux-postmarketos-exynos4: update to 6.16.1

Some notable changes since 6.10.1 are:

- Add support for konawifi (@jack_kekzoz)
- Drop initramfs that we carried in kernel (only exynos4210 devices
  needed it, and those can now use u-boot)
- Update config to make kernel a bit smaller (disable some options,
  make others modules), and enable options to make pmbootstrap kconfig
  happy
- Add ctx->panel.prepare_prev_first to ea8061 panel driver, to fix
  issue where panel is all black

Co-developed-by: @knuxify <knuxify@gmail.com>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6921>

device/community/linux-postmarketos-exynos4/APKBUILD

@@ -4,8 +4,8 @@
 # Kernel config based on: arch/arm/configs/exynos_defconfig
 
 pkgname=linux-postmarketos-exynos4
-pkgver=6.10.0
-pkgrel=6
+pkgver=6.16.1
+pkgrel=0
 pkgdesc="Mainline kernel fork for Samsung Exynos4 devices"
 arch="armv7"
 _carch="arm"
@@ -69,6 +69,6 @@ package() {
 }
 
 sha512sums="
-a320d0be4532f469be015e2a6706e507e89daaa55ad50d57a56451dca04b6bbea56f62d15877ef000027ce887ecd04257f9c71d7c9d80aab55607494205fa5c7  linux-postmarketos-exynos4-v6.10.0-exynos4.tar.bz2
-9ed024c2816d561039a6079e46e6dee6e9a616bdca93aee91f67b37b2c3dd6291065eabcaa506f1b9a5f7016dddaf330668e9eb91c3c18ed91782ef17be861ea  config-postmarketos-exynos4.armv7
+c6e0d0ffaa68a5a54b5b64c5bbe92acf91ca6fb8e239d8f13450e3adf612b90a26e9139f9a49bb67e9db418534a002969a59039a253fe27f2d7b0d9ee21260c4  linux-postmarketos-exynos4-v6.16.1-exynos4.tar.bz2
+6f5577cd83244609aeeecc4b15bcb9cec6ad48c80725b2f2bff3a8be92b97d7ba77be74f60f8bf3bd5213182225c020e496a569fac2ef56c8d6fa0e618d70bbd  config-postmarketos-exynos4.armv7
 "