lint/checkpatch: fix false FUNCTION_ARGUMENTS
Fix that the linter complains about:
WARNING:FUNCTION_ARGUMENTS: function definition argument 'void' should also have an identifier name
For functions with attributes at the end, e.g.:
void Fallback_Handler(void) __attribute__((weak, alias("Dummy_Handler")));
Related: https://gerrit.osmocom.org/c/osmo-ccid-firmware/+/42224/comment/7c5b3be0_6ff61090/
Change-Id: I139bdabb38bd0c9ceda99921ebdc0196850c2a53
