Make PMCCNTR depend on ARM, not MEASUREMORE

arch/arm/measuremore/Kconfig

 config MEASUREMORE
-    depends on ARM
-	default n
-	bool "Enable sysfs trigger for interrupt top/bottom handler benchmarks"
+    default n
+	bool "Enable measuremore sysfs triggers for interrupt top/bottom handler benchmarks"
 
 config MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR
+	depends on ARM
 	bool "Read PMCCNTR register"
 
 config MEASUREMORE_TIMESTAMP_TYPE_KTIME_MONO_FAST