check if the config option CONFIG_LANTIQ is defined.
This fixes the following warning:
  CC [M]  drivers/misc/owl-loader.o
drivers/misc/owl-loader.c: In function 'ath9k_pci_fixup':
drivers/misc/owl-loader.c:92:5: warning: "CONFIG_LANTIQ" is not defined [-Wundef]
 #if CONFIG_LANTIQ
     ^
Fixes: 
		
	
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| owl-loader.c | ||