main/postmarketos-mkinitfs: don't rm vmlinuz-* (MR 2501)

Adjust post-upgrade script to not remove vmlinuz-*. This causes problems
with devices using kernels from Alpine, where the kernel is not
installed to /boot/vmlinuz, as it is now the case in postmarketOS, but
e.g. in /boot/vmlinuz-rpi. The intention was to clean up files when
migrating from the old postmarketos-mkinitfs to the new one (>= 1.0.0).
However, the /boot/vmlinuz* files are managed by apk, so they should
already get removed.

Add -v, so it prints a message when removing a file from /boot.

main/postmarketos-mkinitfs/APKBUILD

@@ -2,7 +2,7 @@
 # Co-Maintainer: Clayton Craft <clayton@craftyguy.net>
 pkgname=postmarketos-mkinitfs
 pkgver=1.0.2
-pkgrel=0
+pkgrel=1
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://postmarketos.org"
 depends="

main/postmarketos-mkinitfs/postmarketos-mkinitfs.post-upgrade

@@ -5,8 +5,8 @@
 # full than it needs to be, and things like copying files atomically in the new
 # mkinitfs may not have enough space to do the atomic copy
 echo "Cleaning up old boot files..."
-for f in /boot/boot.img-* /boot/vmlinuz-* /boot/initramfs-*-extra* /boot/initramfs-*[!-extra]; do
-        [ -f "$f" ] && rm "$f"
+for f in /boot/boot.img-* /boot/initramfs-*-extra* /boot/initramfs-*[!-extra]; do
+        [ -f "$f" ] && rm -v "$f"
 done
 
 exit 0