Update mgf ID for fisherman (#876)

Author: haslinghuis

configs/FISHERMANF405/config.h

@@ -24,7 +24,7 @@
 #define FC_TARGET_MCU     STM32F405
 
 #define BOARD_NAME        FISHERMANF405
-#define MANUFACTURER_ID   FISH
+#define MANUFACTURER_ID   FISM
 
 #define USE_ACC
 #define USE_ACC_SPI_MPU6000