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/hrcon_defconfig b/configs/hrcon_defconfig
index 9c1ab75..bc4c2a9 100644
--- a/configs/hrcon_defconfig
+++ b/configs/hrcon_defconfig
@@ -131,3 +131,5 @@
 CONFIG_OR1_XAM_SET=y
 CONFIG_OR1_TRLX_RELAXED=y
 CONFIG_OR1_EHTR_8_CYCLE=y
+CONFIG_LCRR_DBYP_PLL_BYPASSED=y
+CONFIG_LCRR_CLKDIV_2=y