mpc83xx: Get rid of CONFIG_SYS_LBC_*

Except for one counter example, CONFIG_SYS_LBC_LBCR always has a value
of either 0x00040000 or 0x00000000.

CONFIG_SYS_LBC_MRTPR always has the value 0x20000000.

CONFIG_SYS_LBC_LSDMR_{1,2,4,5} are not set for any mpc83xx board.

CONFIG_SYS_LBC_LSRT is set by one board (to 0x32000000).

To simplify the configuration files, hardcode the setting of these
values for mpc83xx.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/board/ids/ids8313/ids8313.c b/board/ids/ids8313/ids8313.c
index a66234a..caa3606 100644
--- a/board/ids/ids8313/ids8313.c
+++ b/board/ids/ids8313/ids8313.c
@@ -129,8 +129,8 @@
 
 	msize = setup_sdram();
 
-	out_be32(&lbc->lbcr, CONFIG_SYS_LBC_LBCR);
-	out_be32(&lbc->mrtpr, CONFIG_SYS_LBC_MRTPR);
+	out_be32(&lbc->lbcr, (0x00040000 | (0xFF << LBCR_BMT_SHIFT) | 0xF));
+	out_be32(&lbc->mrtpr, 0x20000000);
 	sync();
 
 	gd->ram_size = msize;