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/ve8313_defconfig b/configs/ve8313_defconfig
index 79f6430..0a9521b 100644
--- a/configs/ve8313_defconfig
+++ b/configs/ve8313_defconfig
@@ -145,3 +145,5 @@
 CONFIG_OR3_XACS_EXTENDED=y
 CONFIG_OR3_TRLX_RELAXED=y
 CONFIG_OR3_EHTR_8_CYCLE=y
+CONFIG_LCRR_EADC_3=y
+CONFIG_LCRR_CLKDIV_2=y