amd/agesa,cimx: Rename ACPI OS detection methods

Try to 'standardize' the otherwise peculiar method naming to be somewhat
more in-line with other ACPI implementations. This makes it easier to
compare with vendor DSDT dumps for example.

Change-Id: I5ba54f7361796669ac0cab7ff91e7de43b22e846
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5888
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

src/southbridge/amd/agesa/hudson/acpi/audio.asl

@@ -47,7 +47,7 @@ Device(AZHD) {	/* 0:14.2 - HD Audio */
 
 	Method (_INI, 0, NotSerialized)
 	{
-		If (LEqual (OSTP, 0x03))
+		If (LEqual (OSVR, 0x03))
 		{
 			Store (Zero, NSEN)
 			Store (One, NSDO)

src/southbridge/amd/agesa/hudson/acpi/fch.asl

@@ -177,30 +177,30 @@ Method(_INI, 0) {
 	/* DBGO("\n") */
 
 	/* Determine the OS we're running on */
-	CkOT()
+	OSFL()
 
 	/* TODO: It is unstable. */
 	//#include "acpi/AmdImc.asl" /* Hudson IMC function */
 	//ITZE() /* enable IMC Fan Control*/
 } /* End Method(_SB._INI) */
 
-Method(CkOT, 0){
+Method(OSFL, 0){
 
-	if(LNotEqual(OSTP, Ones)) {Return(OSTP)}	/* OS version was already detected */
+	if(LNotEqual(OSVR, Ones)) {Return(OSVR)}	/* OS version was already detected */
 
 	if(CondRefOf(\_OSI,Local1))
 	{
-		Store(1, OSTP)					/* Assume some form of XP */
+		Store(1, OSVR)					/* Assume some form of XP */
 		if (\_OSI("Windows 2006"))		/* Vista */
 		{
-			Store(2, OSTP)
+			Store(2, OSVR)
 		}
 	} else {
 		If(WCMP(\_OS,"Linux")) {
-			Store(3, OSTP)				/* Linux */
+			Store(3, OSVR)				/* Linux */
 		} Else {
-			Store(4, OSTP)				/* Gotta be WinCE */
+			Store(4, OSVR)				/* Gotta be WinCE */
 		}
 	}
-	Return(OSTP)
+	Return(OSVR)
 }

src/southbridge/amd/cimx/sb800/acpi/fch.asl

@@ -178,7 +178,7 @@ Method(_INI, 0) {
 	/* DBGO("\n") */
 
 	/* Determine the OS we're running on */
-	CkOT()
+	OSFL()
 
 	/* On older chips, clear PciExpWakeDisEn */
 	/*if (LLessEqual(\SBRI, 0x13)) {