drivers/net/ethernet/i825xx/3c505.c: fix build with dynamic debug

The `#define filename' screws up the expansion of
DEFINE_DYNAMIC_DEBUG_METADATA:

drivers/net/ethernet/i825xx/3c505.c: In function 'send_pcb':
drivers/net/ethernet/i825xx/3c505.c:390: error: expected identifier before string constant
drivers/net/ethernet/i825xx/3c505.c:390: error: expected '}' before '.' token
drivers/net/ethernet/i825xx/3c505.c:436: error: expected identifier before string constant
drivers/net/ethernet/i825xx/3c505.c:435: error: expected '}' before '.' token
drivers/net/ethernet/i825xx/3c505.c: In function 'start_receive':
drivers/net/ethernet/i825xx/3c505.c:557: error: expected identifier before string constant
drivers/net/ethernet/i825xx/3c505.c:557: error: expected '}' before '.' token
drivers/net/ethernet/i825xx/3c505.c: In function 'receive_packet':
drivers/net/ethernet/i825xx/3c505.c:629: error: expected identifier before string constant

etc

So remove that #define and "open-code" it.

Cc: Philip Blundell <philb@gnu.org>
Cc: David Miller <davem@davemloft.net>
Cc: Jason Baron <jbaron@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/i825xx/3c505.c

@@ -126,15 +126,13 @@
  *
  *********************************************************/
 
-#define filename __FILE__
-
 #define timeout_msg "*** timeout at %s:%s (line %d) ***\n"
 #define TIMEOUT_MSG(lineno) \
-	pr_notice(timeout_msg, filename, __func__, (lineno))
+	pr_notice(timeout_msg, __FILE__, __func__, (lineno))
 
 #define invalid_pcb_msg "*** invalid pcb length %d at %s:%s (line %d) ***\n"
 #define INVALID_PCB_MSG(len) \
-	pr_notice(invalid_pcb_msg, (len), filename, __func__, __LINE__)
+	pr_notice(invalid_pcb_msg, (len), __FILE__, __func__, __LINE__)
 
 #define search_msg "%s: Looking for 3c505 adapter at address %#x..."