arch_topology: Remove error messages on out-of-memory conditions

There is no need to print error messages if kcalloc() or
alloc_cpumask_var() fail, as the memory allocation core already takes
care of that.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20190527122703.6303-1-geert+renesas@glider.be


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>