hw/ppc/spapr.c: consecutive 'spapr->patb_entry = 0' statements

In ppc_spapr_reset(), if the guest is using HPT, the code was executing:

    } else {
        spapr->patb_entry = 0;
        spapr_setup_hpt_and_vrma(spapr);
    }

And, at the end of spapr_setup_hpt_and_vrma:

    /* We're setting up a hash table, so that means we're not radix */
    spapr->patb_entry = 0;

Resulting in spapr->patb_entry being assigned to 0 twice in a row.

Given that 'spapr_setup_hpt_and_vrma' is also called inside
'spapr_check_setup_free_hpt' of spapr_hcall.c, this trivial patch removes
the 'patb_entry = 0' assignment from the 'else' clause inside ppc_spapr_reset
to avoid this behavior.
Signed-off-by: NDaniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

hw/ppc/spapr.c

@@ -1376,7 +1376,6 @@ static void ppc_spapr_reset(void)
          * Set the GR bit in PATB so that we know there is no HPT. */
         spapr->patb_entry = PATBE1_GR;
     } else {
-        spapr->patb_entry = 0;
         spapr_setup_hpt_and_vrma(spapr);
     }