mpc83xx: Migrate CONFIG_LCRR_* to Kconfig

Migrate the CONFIG_LCRR_* settings to Kconfig.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/configs/MPC832XEMDS_defconfig b/configs/MPC832XEMDS_defconfig
index 518f711..8a26001 100644
--- a/configs/MPC832XEMDS_defconfig
+++ b/configs/MPC832XEMDS_defconfig
@@ -142,3 +142,5 @@
 CONFIG_OR3_XAM_SET=y
 CONFIG_OR3_TRLX_RELAXED=y
 CONFIG_OR3_EHTR_8_CYCLE=y
+CONFIG_LCRR_DBYP_PLL_BYPASSED=y
+CONFIG_LCRR_CLKDIV_2=y