make the i386 *buntu version check for UEFI

[Nio Wiklund]

sanderj at ubuntuforums suggests

'http://www.ubuntu.com/download/desktop indeed says "If you have a PC
with the Windows 8 logo or UEFI firmware, choose the 64-bit download.".
I would find it useful if the i386 Ubuntu version would check for UEFI,
and if so, bail out and advice the 64-bit version. Just like the 64-bit
install does when you try to run it on 32-bit'

http://ubuntuforums.org/showthread.php?t=2139499&p=12621271#post12621271

And I think this is a good idea :-)

Best regards
Nio alias sudodus