platform/x86: acerhdf: Add BIOS entry for Gateway LT31 v1.3307

[ Upstream commit 684238d79ad85c5e19a71bb5818e77e329912fbc ]

To fix:

  acerhdf: unknown (unsupported) BIOS version Gateway  /LT31   /v1.3307 , please report, aborting!

As can be seen in the context, the BIOS registers haven't changed in
the previous versions, so the assumption is they won't have changed
in this last update for this somewhat older platform either.

Cc: Peter Feuerer <peter@piie.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>