igc: Fix prototype warning

Correct report warnings in igc_i225.c
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/igc/igc_i225.c

@@ -6,7 +6,7 @@
 #include "igc_hw.h"
 
 /**
- * igc_get_hw_semaphore_i225 - Acquire hardware semaphore
+ * igc_acquire_nvm_i225 - Acquire exclusive access to EEPROM
  * @hw: pointer to the HW structure
  *
  * Acquire the necessary semaphores for exclusive access to the EEPROM.