more windows versions for acpi _OSI checks

[Jonathan Gray]

Claim to be more versions of windows for _OSI.  Mostly based on the
table in 'How to Identify the Windows Version in ACPI by Using _OSI'.

2001.1 SP1      Windows Server 2003 SP1
2006.1          Windows Server 2008
2006 SP1        Windows Vista SP1
2006 SP2        Windows Vista SP2
2015            Windows 10

Index: dsdt.c
===================================================================
RCS file: /cvs/src/sys/dev/acpi/dsdt.c,v
retrieving revision 1.219
diff -u -p -r1.219 dsdt.c
--- dsdt.c      13 Jan 2016 23:11:22 -0000      1.219
+++ dsdt.c      28 Feb 2016 04:54:21 -0000
@@ -1479,15 +1479,20 @@ char *aml_valid_osi[] = {
        "Windows 2000",
        "Windows 2001",
        "Windows 2001.1",
+       "Windows 2001.1 SP1",
        "Windows 2001 SP0",
        "Windows 2001 SP1",
        "Windows 2001 SP2",
        "Windows 2001 SP3",
        "Windows 2001 SP4",
        "Windows 2006",
+       "Windows 2006.1",
+       "Windows 2006 SP1",
+       "Windows 2006 SP2",
        "Windows 2009",
        "Windows 2012",
        "Windows 2013",
+       "Windows 2015",
        NULL
 };