x86: Use a common definition of MSR_IA32_PERF_CTL

Remove the duplicate definition as it is not needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/cpu/broadwell/cpu_full.c b/arch/x86/cpu/broadwell/cpu_full.c
index 9686cf5..0e3d878 100644
--- a/arch/x86/cpu/broadwell/cpu_full.c
+++ b/arch/x86/cpu/broadwell/cpu_full.c
@@ -357,7 +357,7 @@
 		msr = msr_read(MSR_PLATFORM_INFO);
 		perf_ctl.lo = msr.lo & 0xff00;
 	}
-	msr_write(IA32_PERF_CTL, perf_ctl);
+	msr_write(MSR_IA32_PERF_CTL, perf_ctl);
 
 	debug("cpu: frequency set to %d\n",
 	      ((perf_ctl.lo >> 8) & 0xff) * CPU_BCLK);