PATCH: Fix boolean value for ACPI logical comparisons

[Jordan Hargrave]

This patch changes the values of boolean comparisons from 0:1 to 0:-1 (from 
ACPI Spec) in order to fix an AML issue on some Asus machines.
Please test on other machines as well to verify that hardware sensors/acpi/boot 
work properly.

Index: dsdt.c
===================================================================
RCS file: /cvs/src/sys/dev/acpi/dsdt.c,v
retrieving revision 1.181
diff -u -p -b -r1.181 dsdt.c
--- dsdt.c      2 Jan 2011 04:56:57 -0000       1.181
+++ dsdt.c      18 Mar 2011 21:55:16 -0000
@@ -1167,31 +1167,31 @@ aml_evalexpr(int64_t lhs, int64_t rhs, i
 
                /* Logical/Comparison */
        case AMLOP_LAND:
-               res = (lhs && rhs);
+               res = -(lhs && rhs);
                break;
        case AMLOP_LOR:
-               res = (lhs || rhs);
+               res = -(lhs || rhs);
                break;
        case AMLOP_LNOT:
-               res = (!lhs);
+               res = -(!lhs);
                break;
        case AMLOP_LNOTEQUAL:
-               res = (lhs != rhs);
+               res = -(lhs != rhs);
                break;
        case AMLOP_LLESSEQUAL:
-               res = (lhs <= rhs);
+               res = -(lhs <= rhs);
                break;
        case AMLOP_LGREATEREQUAL:
-               res = (lhs >= rhs);
+               res = -(lhs >= rhs);
                break;
        case AMLOP_LEQUAL:
-               res = (lhs == rhs);
+               res = -(lhs == rhs);
                break;
        case AMLOP_LGREATER:
-               res = (lhs > rhs);
+               res = -(lhs > rhs);
                break;
        case AMLOP_LLESS:
-               res = (lhs < rhs);
+               res = -(lhs < rhs);
                break;
        }