Marked VK_RZ_A1H as release for mbed 2 and mbed 5

per @sg-

Author: geky

hal/targets.json

@@ -1652,7 +1652,8 @@
         "program_cycle_s": 2,
         "device_has": ["ANALOGIN", "CAN", "ERROR_PATTERN", "ETHERNET", "I2C", "I2CSLAVE", "INTERRUPTIN", "PORTIN", "PORTINOUT", "PORTOUT", "PWMOUT", "RTC", "SERIAL", "SERIAL_FC", "SPI", "SPISLAVE", "STDIO_MESSAGES"],
         "features": ["IPV4"],
-        "default_build": "standard"
+        "default_build": "standard",
+        "release_versions": ["2", "5"]
     },
     "MAXWSNENV": {
         "inherits": ["Target"],