powernow-k7: Fix CPU family number

Commit fa8031aefec0cf7ea6c2387c93610d99d9659aa2 ('cpufreq: Add support
for x86 cpuinfo auto loading v4') seems to have inadvertently changed
the matched CPU family number from 6 to 7. Change it back.

Signed-off-by: Ben Hutchings <[e-mail]>
Acked-by: Thomas Renninger <[e-mail]>
Acked-by: H. Peter Anvin <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/cpufreq/powernow-k7.c

···
 }
 
 static const struct x86_cpu_id powernow_k7_cpuids[] = {
-	{ X86_VENDOR_AMD, 7, },
+	{ X86_VENDOR_AMD, 6, },
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, powernow_k7_cpuids);