[CPUFREQ] correct powernow-k8 fid/vid masks for extended parts

The fid/vid masks for parts using the extended parts are slightly incorrect and can result in
incorrect fid/vid codes being applied.  No instances of this problem have been reported in
the field but it could be a problem with future parts.
Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>

arch/i386/kernel/cpu/cpufreq/powernow-k8.c

@@ -885,8 +885,8 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf
 		u32 vid;
 
 		if (data->exttype) {
-			fid = data->acpi_data.states[i].status & FID_MASK;
-			vid = (data->acpi_data.states[i].status >> VID_SHIFT) & VID_MASK;
+			fid = data->acpi_data.states[i].status & EXT_FID_MASK;
+			vid = (data->acpi_data.states[i].status >> VID_SHIFT) & EXT_VID_MASK;
 		} else {
 			fid = data->acpi_data.states[i].control & FID_MASK;
 			vid = (data->acpi_data.states[i].control >> VID_SHIFT) & VID_MASK;

arch/i386/kernel/cpu/cpufreq/powernow-k8.h

@@ -169,7 +169,9 @@ struct powernow_k8_data {
 #define MVS_MASK        3
 #define VST_MASK     0x7f
 #define VID_MASK     0x1f
-#define FID_MASK     0x3f
+#define FID_MASK     0x1f
+#define EXT_VID_MASK 0x3f
+#define EXT_FID_MASK 0x3f
 
 
 /*