mkarchiso: skip including external microcode images if the initramfs file contains early_cpio

The early uncompressed CPIO archive containing microcode update files
can be part of the initramfs file. To avoid wasting space, first check
if the initramfs file contains `early_cpio` and only copy external
microcode initramfs images if it does not.

1 files changed, 2 insertions, 0 deletions

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c316aed..40961be 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -16,6 +16,8 @@ Changed
 - Move ``/boot/grub/YYYY-mm-dd-HH-MM-SS-00.uuid`` to ``/boot/YYYY-mm-dd-HH-MM-SS-00.uuid`` and always create the file.
   Once mkinitcpio-archiso implements searching for the file in early userspace, this file's use will not be limited to
   just GRUB.
+- Skip including external microcode images in build artifacts if the initramfs file contains ``early_cpio`` (indicating
+  an early uncompressed CPIO archive which should have the microcode update files).
 
 Deprecated
 ----------