migration/rdma: Use bool for two RDMAContext flags

@error_reported and @received_error are flags.  The latter is even
assigned bool true.  Change them from int to bool.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230928132019.2544702-16-armbru@redhat.com>

migration/rdma.c

@@ -91,7 +91,7 @@ static uint32_t known_capabilities = RDMA_CAPABILITY_PIN_ALL;
             if (!rdma->error_reported) { \
                 error_report("RDMA is in an error state waiting migration" \
                                 " to abort!"); \
-                rdma->error_reported = 1; \
+                rdma->error_reported = true; \
             } \
             return rdma->error_state; \
         } \
@@ -365,8 +365,8 @@ typedef struct RDMAContext {
      * and remember the error state.
      */
     int error_state;
-    int error_reported;
-    int received_error;
+    bool error_reported;
+    bool received_error;
 
     /*
      * Description of ram blocks used throughout the code.