main/syslilnux: add amd-ucode image, if found, to extlinux conf

main/syslinux/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=syslinux
 pkgver=6.04_pre1
-pkgrel=7
+pkgrel=8
 _ver=${pkgver/_/-}
 pkgdesc="Boot loader for the Linux operating system"
 url="https://syslinux.org"
@@ -47,7 +47,7 @@ package() {
 
 sha512sums="7927dd39be8e2dcf4138a6fea33def67d19d938379d694f15b48fdd2f5924c028b7a9e7bd71d0c7c6630c203e9e2a54296628e530632ad5e6f55b1ebefe8fc98  syslinux-6.04-pre1.tar.xz
 9d2b82c91525de584daad6b0c0e2df5d13092c47e91a812e26405f5ff78d4587a8ae7f7a8590124687307f83efb15f686e4090193adc7b4e3601a4200f9283cd  update-extlinux.conf
-bfeb911507c079c8b01027a7823e562d81100b1fcd0786c707ad33c5ce18fa0eb6d6db34bc7b6cbbc419248188970cebe8286345f4aa3662d16644c51f50b98c  update-extlinux
+8a46d4c601bd6a1e1308138af73792ef6eda9a1eac1cbcd13af27cf31ecf2960a130b22ad3439c4d5df3c5fd9dc934900b29e449ea958d1496b331885a7f5af6  update-extlinux
 92fa48133ef702092d7acafae0e0e20f9355cd2b5fe199b96fcccba5a1e688c360de4d069391815255f5493228ad03998d20b99748323396d20d12a1f27c60cd  0018-prevent-pow-optimization.patch
 6fb63b50a6c746445a58badc81cbf8525f38e2a7868b97ac21aa9d20c162f2318fab6c25505614700033a840aa5c06c3cef3065f11b5b5f4e514474194ff4b54  fix-sysmacros.patch
 62a45f94107300b05a93be18a228c15ae9ce90addeee39a1ef35845077b493e72ebed35791bf8db21c406c379a83220cc4db4e1919c01fcd387ae10b2cfc8861  gcc-10.patch"

main/syslinux/update-extlinux

@@ -170,6 +170,10 @@ for kernel in $(find /boot -name "vmlinuz*" -type f); do
 		everbose "Found initramfs: /boot/initramfs-$tag"
 		initrd="initramfs-$tag"
 	fi
+	if [ -f "/boot/amd-ucode.img" ]; then
+		everbose "Found microcode for AMD CPUs: /boot/amd-ucode.img"
+		initrd="amd-ucode.img${initrd:+,}${initrd}"
+	fi
 	if [ -f "/boot/intel-ucode.img" ]; then
 		everbose "Found microcode for Intel CPUs: /boot/intel-ucode.img"
 		initrd="intel-ucode.img${initrd:+,}${initrd}"