net: ethernet: ti: Fix format specifier in netcp_create_interface()

After commit 3948b05950fd ("net: introduce a config option to tweak
MAX_SKB_FRAGS"), clang warns:

drivers/net/ethernet/ti/netcp_core.c:2085:4: warning: format specifies type 'long' but the argument has type 'int' [-Wformat]
MAX_SKB_FRAGS);
^~~~~~~~~~~~~
include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err'
dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
_p_func(dev, fmt, ##__VA_ARGS__); \
~~~ ^~~~~~~~~~~
include/linux/skbuff.h:352:23: note: expanded from macro 'MAX_SKB_FRAGS'
#define MAX_SKB_FRAGS CONFIG_MAX_SKB_FRAGS
^~~~~~~~~~~~~~~~~~~~
./include/generated/autoconf.h:11789:30: note: expanded from macro 'CONFIG_MAX_SKB_FRAGS'
#define CONFIG_MAX_SKB_FRAGS 17
^~
1 warning generated.

Follow the pattern of the rest of the tree by changing the specifier to
'%u' and casting MAX_SKB_FRAGS explicitly to 'unsigned int', which
eliminates the warning.

Fixes: 3948b05950fd ("net: introduce a config option to tweak MAX_SKB_FRAGS")
Signed-off-by: Nathan Chancellor <[e-mail]>
Reviewed-by: Nick Desaulniers <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/ethernet/ti/netcp_core.c

···
 	netcp->tx_pool_region_id = temp[1];
 
 	if (netcp->tx_pool_size < MAX_SKB_FRAGS) {
-		dev_err(dev, "tx-pool size too small, must be at least %ld\n",
-			MAX_SKB_FRAGS);
+		dev_err(dev, "tx-pool size too small, must be at least %u\n",
+			(unsigned int)MAX_SKB_FRAGS);
 		ret = -ENODEV;
 		goto quit;
 	}