x86, msr: Fix typo in ENERGY_PERF_BIAS_POWERSAVE

Fix a trivial typo in the name of the constant
ENERGY_PERF_BIAS_POWERSAVE.  This didn't cause trouble because this
constant is not currently used for anything.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Len Brown <len.brown@intel.com>
Link: http://lkml.kernel.org/r/tip-abe48b108247e9b90b4c6739662a2e5c765ed114@git.kernel.org

arch/x86/include/asm/msr-index.h

@@ -261,7 +261,7 @@
 #define MSR_IA32_ENERGY_PERF_BIAS	0x000001b0
 #define ENERGY_PERF_BIAS_PERFORMANCE	0
 #define ENERGY_PERF_BIAS_NORMAL		6
-#define ENERGY_PERF_BIAS_POWERSWAVE	15
+#define ENERGY_PERF_BIAS_POWERSAVE	15
 
 #define MSR_IA32_PACKAGE_THERM_STATUS		0x000001b1