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/kmtepr2_defconfig b/configs/kmtepr2_defconfig
index 1a84ff5..32d0980 100644
--- a/configs/kmtepr2_defconfig
+++ b/configs/kmtepr2_defconfig
@@ -179,3 +179,6 @@
 CONFIG_OR3_AM_256_MBYTES=y
 CONFIG_OR3_SCY_4=y
 CONFIG_OR3_EHTR_NORMAL=y
+CONFIG_LCRR_DBYP_PLL_BYPASSED=y
+CONFIG_LCRR_EADC_1=y
+CONFIG_LCRR_CLKDIV_2=y