trivial: fix a typo in a filename

#     - See include/linux/module.h for more details

# Step 4 is solely used to allow module versioning in external modules,

# where the CRC of each module is retrieved from the Module.symers file.

# where the CRC of each module is retrieved from the Module.symvers file.

# KBUILD_MODPOST_WARN can be set to avoid error out in case of undefined

# symbols in the final module linking stage