net: punt bd->bi_ip_addr

This field gets read in one place (by "bdinfo"), and we can replace
that with getenv("ipaddr").  After all, the bi_ip_addr field is kept
up-to-date implicitly with the value of the ipaddr env var.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>

arch/sh/include/asm/u-boot.h

@@ -33,7 +33,6 @@ typedef struct bd_info {
 	unsigned long   bi_flashoffset; /* reserved area for startup monitor */
 	unsigned long   bi_sramstart;   /* start of SRAM memory */
 	unsigned long   bi_sramsize;    /* size  of SRAM memory */
-	unsigned long   bi_ip_addr;     /* IP Address */
 	unsigned long   bi_baudrate;    /* Console Baudrate */
 	unsigned long	bi_boot_params; /* where this board expects params */
 } bd_t;