[CPUFREQ] Quieten the powernow-k7 init printk a little.

There seem to be quite a few desktop K7 processors which support the
powernow cpuid call, but don't actually offer any powernow scaling.
In which case the driver prints out
"PowerNOW! Technology present. Can scale: nothing" which looks a bit odd,
and just adds to confusion of end-users.
Change things so that we don't print anything at all if we can't do anything.

Also kill some trailing whitespace gremlins that crept in.

arch/i386/kernel/cpu/cpufreq/powernow-k7.c

@@ -144,6 +144,11 @@ static int check_powernow(void)
 	}
 
 	cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
+
+	/* Check we can actually do something before we say anything.*/
+	if (!(edx & (1 << 1 | 1 << 2)))
+		return 0;
+
 	printk (KERN_INFO PFX "PowerNOW! Technology present. Can scale: ");
 
 	if (edx & 1 << 1) {
@@ -159,11 +164,6 @@ static int check_powernow(void)
 		can_scale_vid=1;
 	}
 
-	if (!(edx & (1 << 1 | 1 << 2))) {
-		printk ("nothing.\n");
-		return 0;
-	}
-
 	printk (".\n");
 	return 1;
 }