target-microblaze: compute_ldst_addr: Use bool instead of int

Use bool instead of int to represent flags.
No functional change.
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>

target/microblaze/translate.c

@@ -845,13 +845,13 @@ static void dec_imm(DisasContext *dc)
 
 static inline TCGv *compute_ldst_addr(DisasContext *dc, TCGv *t)
 {
-    unsigned int extimm = dc->tb_flags & IMM_FLAG;
-    /* Should be set to one if r1 is used by loadstores.  */
-    int stackprot = 0;
+    bool extimm = dc->tb_flags & IMM_FLAG;
+    /* Should be set to true if r1 is used by loadstores.  */
+    bool stackprot = false;
 
     /* All load/stores use ra.  */
     if (dc->ra == 1 && dc->cpu->cfg.stackprot) {
-        stackprot = 1;
+        stackprot = true;
     }
 
     /* Treat the common cases first.  */
@@ -864,7 +864,7 @@ static inline TCGv *compute_ldst_addr(DisasContext *dc, TCGv *t)
         }
 
         if (dc->rb == 1 && dc->cpu->cfg.stackprot) {
-            stackprot = 1;
+            stackprot = true;
         }
 
         *t = tcg_temp_new();