Add NBR_847 (used with ISO14443B) and update convert function.

include/nfc/nfc-types.h

@@ -305,6 +305,7 @@ typedef enum {
   NBR_106,
   NBR_212,
   NBR_424,
+  NBR_847,
 } nfc_baud_rate_t;
 
 /**

libnfc/chips/pn53x.c

@@ -1521,6 +1521,9 @@ pn53x_nm_to_pm(const nfc_modulation_t nm)
         case NBR_424:
           return PM_ISO14443B_424;
         break;
+        case NBR_847:
+          return PM_ISO14443B_847;
+        break;
         case NBR_UNDEFINED:
           // XXX What to do ?
         break;