There is a difference in generated code: xmalloc_bytes() forces
SMP_CACHE_BYTES alignment. I think we not only don't need this here, but
actually don't want it.

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/cpu/mcheck/mctelem.c
+++ b/xen/arch/x86/cpu/mcheck/mctelem.c
@@ -345,7 +345,7 @@ void __init mctelem_init(unsigned int da
 
 	if ((mctctl.mctc_elems = xmalloc_array(struct mctelem_ent,
 	    MC_NENT)) == NULL ||
-	    (datarr = xmalloc_bytes(MC_NENT * datasz)) == NULL) {
+	    (datarr = xmalloc_array(char, MC_NENT * datasz)) == NULL) {
 		xfree(mctctl.mctc_elems);
 		printk("Allocations for MCA telemetry failed\n");
 		return;