target/etb: Use 'bool' data type

Change-Id: I536036b15af10bb1879dbbec84576134fd3dce35
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4966


Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

src/target/etb.c

@@ -143,8 +143,8 @@ struct reg_cache *etb_build_reg_cache(struct etb *etb)
 	for (i = 0; i < num_regs; i++) {
 		reg_list[i].name = etb_reg_list[i];
 		reg_list[i].size = 32;
-		reg_list[i].dirty = 0;
-		reg_list[i].valid = 0;
+		reg_list[i].dirty = false;
+		reg_list[i].valid = false;
 		reg_list[i].value = calloc(1, 4);
 		reg_list[i].arch_info = &arch_info[i];
 		reg_list[i].type = &etb_reg_type;
@@ -272,8 +272,8 @@ static int etb_set_reg(struct reg *reg, uint32_t value)
 	}
 
 	buf_set_u32(reg->value, 0, reg->size, value);
-	reg->valid = 1;
-	reg->dirty = 0;
+	reg->valid = true;
+	reg->dirty = false;
 
 	return ERROR_OK;
 }