a patch for TY51822r3 to use a change of PR #2535

Author: ytsuboi

hal/targets.json

@@ -1557,7 +1557,8 @@
         "progen": {"target": "ty51822r3"},
         "device_has": ["ANALOGIN", "ERROR_PATTERN", "I2C", "I2C_ASYNCH", "INTERRUPTIN", "LOWPOWERTIMER", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_ASYNCH", "SLEEP", "SPI", "SPI_ASYNCH", "SPISLAVE"],
         "detect_code": ["1019"],
-        "release_versions": ["2", "5"]
+        "release_versions": ["2", "5"],
+        "overrides": { "uart_hwfc": 0 }
     },
     "TY51822R3_BOOT": {
         "inherits": ["MCU_NRF51_32K_BOOT"],