new lex cv860a mainboard support.

src/mainboard/lex/cv860a/Config

@@ -0,0 +1,20 @@
+arch i386
+mainboardinit cpu/i386/entry16.inc
+mainboardinit cpu/i386/entry32.inc
+ldscript cpu/i386/entry16.lds
+ldscript cpu/i386/entry32.lds
+
+mainboardinit superio/via/vt82c686/setup_serial.inc
+mainboardinit pc80/serial.inc
+mainboardinit arch/i386/lib/console.inc
+northbridge via/vt8601 
+southbridge via/vt82c686 
+superio via/vt82c686
+mainboardinit cpu/p6/earlymtrr.inc
+
+option ENABLE_FIXED_AND_VARIABLE_MTRRS
+option SUPERIO_DEVFN=0x88
+object mainboard.o
+keyboard pc80
+cpu p5
+cpu p6

src/mainboard/lex/cv860a/STATUS

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+# These are keyword-value pairs. 
+# a : separates the keyword from the value 
+# the value is arbitrary text delimited by newline. 
+# continuation, if needed, will be via the \ at the end of a line
+# comments are indicated by a '#' as the first character. 
+# the keywords are case-INSENSITIVE
+owner:	Ron Minnich
+email:	rminnich@lanl.gov
+#status: One of unsupported, unstable, stable
+status: untested
+explanation: new motherboard
+flash-types: 
+payload-types: 
+# e.g. linux, plan 9, wince, etc.
+OS-types: 
+# e.g. "Plan 9 interrupts don't work on this chipset"
+OS-issues:
+console-types: serial
+# vga is unsupported, unstable, or stable
+vga:unsupported
+# Last-known-good follows the internationl date standard: day/month/year
+last-known-good: 0/0/0000
+Comments: 
+Links:
+Mainboard-revision: 
+# What other mainboards are like this one? List them here. 
+AKA: 

src/mainboard/lex/cv860a/mainboard.c

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+void
+mainboard_fixup()
+{
+  void southbridge_fixup(void);
+  southbridge_fixup();
+}