x86/Centaur: drop __init annotations

Commit 6f8f53cc64 ("x86 cpu: Fix bug: unify cpu_dev attr as
__cpuinitdata") fixed centaur_cpu_dev's annotation without also fixing
the pointers hanging off of it. Even if CPU hotplig support may be
purely theoretical for Centaur, we should still not leave this as is.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/x86/cpu/centaur.c
+++ b/xen/arch/x86/cpu/centaur.c
@@ -15,7 +15,7 @@
 #define RNG_ENABLED	(1 << 3)
 #define RNG_ENABLE	(1 << 6)	/* MSR_VIA_RNG */
 
-static void __init init_c3(struct cpuinfo_x86 *c)
+static void init_c3(struct cpuinfo_x86 *c)
 {
 	uint64_t msr_content;
 
@@ -54,7 +54,7 @@ static void __init init_c3(struct cpuinf
 	display_cacheinfo(c);
 }
 
-static void __init init_centaur(struct cpuinfo_x86 *c)
+static void init_centaur(struct cpuinfo_x86 *c)
 {
 	if (c->x86 == 6)
 		init_c3(c);