x86/aperfperf: Make it correct on 32bit and UP kernels

The utilization of arch_scale_freq_tick() for CPU frequency readouts is
incomplete as it failed to move the function prototype and the define
out of the CONFIG_SMP && CONFIG_X86_64 #ifdef.

Make them unconditionally available.

Fixes: bb6e89df ("x86/aperfmperf: Make parts of the frequency invariance code unconditional")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/lkml/202205010106.06xRBR2C-lkp@intel.com

arch/x86/include/asm/topology.h

@@ -212,9 +212,6 @@ static inline long arch_scale_freq_capacity(int cpu)
 }
 #define arch_scale_freq_capacity arch_scale_freq_capacity
 
-extern void arch_scale_freq_tick(void);
-#define arch_scale_freq_tick arch_scale_freq_tick
-
 extern void arch_set_max_freq_ratio(bool turbo_disabled);
 extern void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled);
 #else
@@ -222,6 +219,9 @@ static inline void arch_set_max_freq_ratio(bool turbo_disabled) { }
 static inline void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled) { }
 #endif
 
+extern void arch_scale_freq_tick(void);
+#define arch_scale_freq_tick arch_scale_freq_tick
+
 #ifdef CONFIG_ACPI_CPPC_LIB
 void init_freq_invariance_cppc(void);
 #define arch_init_invariance_cppc init_freq_invariance_cppc