components/boot: Split out BootDiskCore aarch64 profile to force MBR

Many of the older supported AArch64 systems (particularly single
board computers) require a legacy MBR (Master Boot Record) type
partitioning to successfully boot.

components/boot.xml

@@ -6,7 +6,7 @@
 			<requires profile="BootCore"/>
 		</profile>
 	</profiles>
-	<preferences profiles="BootDiskCore" arch="x86_64,aarch64">
+	<preferences profiles="BootDiskCore" arch="x86_64">
 		<type image="oem"
 		      filesystem="btrfs" btrfs_root_is_subvolume="true" btrfs_set_default_volume="false" fsmountoptions="x-systemd.growfs,compress=zstd:1"
 		      kernelcmdline="rhgb quiet" devicepersistency="by-uuid"
@@ -24,6 +24,24 @@
 			</oemconfig>
 		</type>
 	</preferences>
+	<preferences profiles="BootDiskCore" arch="aarch64">
+		<type image="oem"
+		      filesystem="btrfs" btrfs_root_is_subvolume="true" btrfs_set_default_volume="false" fsmountoptions="x-systemd.growfs,compress=zstd:1"
+		      kernelcmdline="rhgb quiet" devicepersistency="by-uuid" force_mbr="true"
+		      bootpartition="true" bootpartsize="1024" bootfilesystem="ext4" efipartsize="500" firmware="uefi"
+		      rootfs_label="fedora"
+		      >
+			<bootloader name="grub2" console="console" timeout="1" timeout_style="hidden"/>
+			<systemdisk name="fedora">
+				<volume name="@root=root"/>
+				<volume name="home" parent="/"/>
+				<volume name="var" parent="/"/>
+			</systemdisk>
+			<oemconfig>
+				<oem-resize>false</oem-resize>
+			</oemconfig>
+		</type>
+	</preferences>
 	<preferences profiles="BootDiskCore" arch="ppc64le">
 		<type image="oem"
 		      filesystem="btrfs" btrfs_root_is_subvolume="true" btrfs_set_default_volume="false" fsmountoptions="x-systemd.growfs,compress=zstd:1"