net: remove unnecessary semicolon in netdev_alloc_pcpu_stats()

This semicolon causes a build error if the function call is wrapped in
parentheses.

Fixes: aabc92bb ("net: add __netdev_alloc_pcpu_stats() to indicate gfp flags")
Reported-by: NImre Kaloz <kaloz@openwrt.org>
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Acked-by: NPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/netdevice.h

@@ -2084,7 +2084,7 @@ struct pcpu_sw_netstats {
 })
 
 #define netdev_alloc_pcpu_stats(type)					\
-	__netdev_alloc_pcpu_stats(type, GFP_KERNEL);
+	__netdev_alloc_pcpu_stats(type, GFP_KERNEL)
 
 #include <linux/notifier.h>