x86: use cpu_khz for loops_per_jiffy calculation, cleanup

As suggested by Ingo, remove all references to tsc from init/calibrate.c

TSC is x86 specific, and using tsc in variable names in a generic file should
be avoided. lpj_tsc is now called lpj_fine, since it is related to fine tuning
of lpj value. Also tsc_rate_*  is called timer_rate_*

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Daniel Hecht <dhecht@vmware.com>
Cc: Tim Mann <mann@vmware.com>
Cc: Zach Amsden <zach@vmware.com>
Cc: Sahil Rihan <srihan@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index 12b4a71..39ae851 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -123,7 +123,7 @@
 		(boot_cpu_data.x86_vendor == X86_VENDOR_AMD))
 		cpu_khz = calculate_cpu_khz();
 
-	lpj_tsc = ((unsigned long)tsc_khz * 1000)/HZ;
+	lpj_fine = ((unsigned long)tsc_khz * 1000)/HZ;
 
 	if (unsynchronized_tsc())
 		mark_tsc_unstable("TSCs unsynchronized");
diff --git a/arch/x86/kernel/tsc_32.c b/arch/x86/kernel/tsc_32.c
index 0af49fb..048baab 100644
--- a/arch/x86/kernel/tsc_32.c
+++ b/arch/x86/kernel/tsc_32.c
@@ -425,7 +425,7 @@
 
 	lpj = ((u64)tsc_khz * 1000);
 	do_div(lpj, HZ);
-	lpj_tsc = lpj;
+	lpj_fine = lpj;
 
 	printk("Detected %lu.%03lu MHz processor.\n",
 				(unsigned long)cpu_khz / 1000,