hw/ppc: rename functions in comments

Commit bcb5ce08 ("spapr: Rename machine init functions for clarity")
renamed ppc_spapr_reset to spapr_machine_reset and ppc_spapr_init
to spapr_machine_init. Let's also rename the references in
comments.
Signed-off-by: NDaniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

hw/ppc/spapr.c

@@ -464,7 +464,8 @@ static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt)
             }
         }
         if (!mem_start) {
-            /* ppc_spapr_init() checks for rma_size <= node0_size already */
+            /* spapr_machine_init() checks for rma_size <= node0_size
+             * already */
             spapr_populate_memory_node(fdt, i, 0, spapr->rma_size);
             mem_start += spapr->rma_size;
             node_size -= spapr->rma_size;

hw/ppc/spapr_hcall.c

@@ -1635,7 +1635,7 @@ static target_ulong h_client_architecture_support(PowerPCCPU *cpu,
     spapr->cas_legacy_guest_workaround = !spapr_ovec_test(ov1_guest,
                                                           OV1_PPC_3_00);
     if (!spapr->cas_reboot) {
-        /* If ppc_spapr_reset() did not set up a HPT but one is necessary
+        /* If spapr_machine_reset() did not set up a HPT but one is necessary
          * (because the guest isn't going to use radix) then set it up here. */
         if ((spapr->patb_entry & PATBE1_GR) && !guest_radix) {
             /* legacy hash or new hash: */