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/MPC8308RDB_defconfig b/configs/MPC8308RDB_defconfig
index a01ff89..1a38ebd 100644
--- a/configs/MPC8308RDB_defconfig
+++ b/configs/MPC8308RDB_defconfig
@@ -73,6 +73,8 @@
 CONFIG_ACR_PIPE_DEP_4=y
 CONFIG_ACR_RPTCNT_4=y
 CONFIG_SPCR_TSECEP_3=y
+CONFIG_LCRR_DBYP_PLL_BYPASSED=y
+CONFIG_LCRR_CLKDIV_2=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y