lib/spd_bin: Use proper I2C addresses

Use the plain address instead of the weird shifted encoding (e.g. if
we'd use `0xa0` as address, it's actually `0x50` encoded into a write
command).

Change-Id: I6febb2e04e1c6de4294dfa37bde16b147a80b7a8
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20405
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/lib/spd_bin.c

@@ -128,8 +128,6 @@ int get_spd_cbfs_rdev(struct region_device *spd_rdev, u8 spd_index)
 static void get_spd(u8 *spd, u8 addr)
 {
 	u16 i;
-	/* Assuming addr is 8 bit address, make it 7 bit */
-	addr = addr >> 1;
 	if (smbus_read_byte(0, addr, 0)  == 0xff) {
 		printk(BIOS_INFO, "No memory dimm at address %02X\n",
 			addr << 1);