Merge pull request ARMmbed#14849 from arduino/pr_spif_namespace

SPIFBlockDevice: Add mbed namespace to BD_ERROR_DEVICE_ERROR

Author: 0xc0170

storage/blockdevice/COMPONENT_SPIF/include/SPIF/SPIFBlockDevice.h

@@ -45,7 +45,7 @@
  */
 enum spif_bd_error {
     SPIF_BD_ERROR_OK                    = 0,     /*!< no error */
-    SPIF_BD_ERROR_DEVICE_ERROR          = BD_ERROR_DEVICE_ERROR, /*!< device specific error -4001 */
+    SPIF_BD_ERROR_DEVICE_ERROR          = mbed::BD_ERROR_DEVICE_ERROR, /*!< device specific error -4001 */
     SPIF_BD_ERROR_PARSING_FAILED        = -4002, /* SFDP Parsing failed */
     SPIF_BD_ERROR_READY_FAILED          = -4003, /* Wait for Memory Ready failed */
     SPIF_BD_ERROR_WREN_FAILED           = -4004, /* Write Enable Failed */