fsi: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-core.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-hub.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-aspeed.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-gpio.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-ast-cf.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-scom.o

Add the missing invocations of the MODULE_DESCRIPTION() macro, and fix the
copy/paste of the module description comment in fsi-master-ast-cf.c.

Reviewed-by: Eddie James <[e-mail]>
Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/fsi/fsi-core.c

···
 }
 module_exit(fsi_exit);
 module_param(discard_errors, int, 0664);
+MODULE_DESCRIPTION("FSI core driver");
 MODULE_LICENSE("GPL");
 MODULE_PARM_DESC(discard_errors, "Don't invoke error handling on bus accesses");

drivers/fsi/fsi-master-aspeed.c

···
 };
 
 module_platform_driver(fsi_master_aspeed_driver);
+MODULE_DESCRIPTION("FSI master driver for AST2600");
 MODULE_LICENSE("GPL");

drivers/fsi/fsi-master-ast-cf.c

···
 // SPDX-License-Identifier: GPL-2.0+
 // Copyright 2018 IBM Corp
 /*
- * A FSI master controller, using a simple GPIO bit-banging interface
+ * A FSI master based on Aspeed ColdFire coprocessor
  */
 
 #include <linux/crc4.h>
···
 };
 
 module_platform_driver(fsi_master_acf);
+MODULE_DESCRIPTION("A FSI master based on Aspeed ColdFire coprocessor");
 MODULE_LICENSE("GPL");
 MODULE_FIRMWARE(FW_FILE_NAME);

drivers/fsi/fsi-master-gpio.c

···
 };
 
 module_platform_driver(fsi_master_gpio_driver);
+MODULE_DESCRIPTION("A FSI master controller, using a simple GPIO bit-banging interface");
 MODULE_LICENSE("GPL");

drivers/fsi/fsi-master-hub.c

···
 };
 
 module_fsi_driver(hub_master_driver);
+MODULE_DESCRIPTION("FSI hub master driver");
 MODULE_LICENSE("GPL");

drivers/fsi/fsi-scom.c

···
 
 module_init(scom_init);
 module_exit(scom_exit);
+MODULE_DESCRIPTION("SCOM FSI Client device driver");
 MODULE_LICENSE("GPL");