cpu/intel/model_6{e,f}x: Unify init files

The init files for the Core Duo and Core 2 Duo are very similar. Reduce
the differences, by using the same order for the include statements, the
same blank lines, and the same comments.

Change-Id: I0de060222a61a482377c760c6031d73c7e318edf
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://review.coreboot.org/18506
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>

src/cpu/intel/model_6fx/model_6fx_init.c

@@ -21,9 +21,9 @@
 #include <cpu/x86/mtrr.h>
 #include <cpu/x86/msr.h>
 #include <cpu/x86/lapic.h>
+#include <cpu/intel/hyperthreading.h>
 #include <cpu/intel/microcode.h>
 #include <cpu/intel/speedstep.h>
-#include <cpu/intel/hyperthreading.h>
 #include <cpu/x86/cache.h>
 #include <cpu/x86/name.h>
 #include <cpu/intel/common/common.h>
@@ -34,12 +34,11 @@ static void configure_c_states(void)
 	msr_t msr;
 
 	msr = rdmsr(MSR_PMG_CST_CONFIG_CONTROL);
-
 	msr.lo |= (1 << 15); // config lock until next reset
 	msr.lo |= (1 << 14); // Deeper Sleep
-	msr.lo |= (1 << 10); // Enable IO MWAIT redirection
-	msr.lo &= ~(1 << 9); // Issue a  single stop grant cycle upon stpclk
-	msr.lo |= (1 << 3); // Dynamic L2
+	msr.lo |= (1 << 10); // Enable I/O MWAIT redirection for C-States
+	msr.lo &= ~(1 << 9); // Issue a single stop grant cycle upon stpclk
+	msr.lo |= (1 << 3); // dynamic L2
 
 	/* Number of supported C-States */
 	msr.lo &= ~7;
@@ -47,7 +46,7 @@ static void configure_c_states(void)
 
 	wrmsr(MSR_PMG_CST_CONFIG_CONTROL, msr);
 
-	/* Set Processor MWAIT IO BASE */
+	/* Set Processor MWAIT IO BASE (P_BLK) */
 	msr.hi = 0;
 	msr.lo = ((PMB0_BASE + 4) & 0xffff) | (((PMB1_BASE + 9) & 0xffff) << 16);
 	wrmsr(MSR_PMG_IO_BASE_ADDR, msr);