trailblazer: use default sector size (MR 5498)

The 4k sector size is required for mobile, however we currently don't
build a split image anyway (which is also necessary). Let's just go for
512 bytes so the prebuilt images can be flashed to a USB drive.

[ci:skip-build]

device/testing/device-postmarketos-trailblazer/APKBUILD

@@ -2,7 +2,7 @@
 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-postmarketos-trailblazer
 pkgdesc="postmarketOS Trailblazer generic ARM64"
-pkgver=5
+pkgver=6
 pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
@@ -38,6 +38,6 @@ package() {
 }
 
 sha512sums="
-1f353c9ccca43a43bf04b115f87d07ff472b19ca41ac2289d69f2453c708b12f4d5421599c752ed4ed75455ea341dd3f3c6766117282786933e878a109777fef  deviceinfo
+255f7477ad35723cdfdac91969d3facd4879cb858dbcaf990abe11a0ff2e975941ba98e5e10dd243765f15539c9aee18242cd31b9438008846867c703e98c421  deviceinfo
 71fa3c8b3e7b001be910a64650213854b31db667286f59566bcd27db496f37ad43905d8526d8e061057d04d7e21a36da185eac845a4d7826969ecdf0cabc3f85  modules-initfs
 "

device/testing/device-postmarketos-trailblazer/deviceinfo

@@ -23,5 +23,3 @@ deviceinfo_partition_type="gpt"
 deviceinfo_boot_filesystem="fat32"
 deviceinfo_generate_systemd_boot="true"
 
-# Required for devices using UFS as storage (instead of e.g. eMMC)
-deviceinfo_rootfs_image_sector_size="4096"