indirect_call_wrapper: Fix typo in INDIRECT_CALL_$NR kerneldoc

Fix a small typo in the kerneldoc comment of the INDIRECT_CALL_$NR
macro.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20231114104202.4680-1-tklauser@distanz.ch


Signed-off-by: Paolo Abeni <pabeni@redhat.com>