doc: Drop ref to Bochs from -no-fd-bootchk documentation

Manual page and qemu-doc on talk about "Bochs BIOS".  We use SeaBIOS,
and it implements the feature.  Replace by just "BIOS", and drop the
TODO line wondering about the Bochs reference.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1371208516-7857-7-git-send-email-armbru@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

qemu-options.hx

@@ -1268,9 +1268,8 @@ DEF("no-fd-bootchk", 0, QEMU_OPTION_no_fd_bootchk,
 STEXI
 @item -no-fd-bootchk
 @findex -no-fd-bootchk
-Disable boot signature checking for floppy disks in Bochs BIOS. It may
+Disable boot signature checking for floppy disks in BIOS. May
 be needed to boot from old floppy disks.
-TODO: check reference to Bochs BIOS.
 ETEXI
 
 DEF("no-acpi", 0, QEMU_OPTION_no_acpi,