cpu/ rtc/ include/: Remove lingering references to CFG_CMD_* symbols.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/cpu/ppc4xx/dcr.S b/cpu/ppc4xx/dcr.S
index fe136e0..93465a3 100644
--- a/cpu/ppc4xx/dcr.S
+++ b/cpu/ppc4xx/dcr.S
@@ -195,4 +195,4 @@
 		blr				/* Return to calling function */
 .Lfe4:		.size	set_dcr,.Lfe4-set_dcr
 /* end set_dcr() */
-#endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */
+#endif
diff --git a/cpu/ppc4xx/kgdb.S b/cpu/ppc4xx/kgdb.S
index cd12727..8c4bbf2 100644
--- a/cpu/ppc4xx/kgdb.S
+++ b/cpu/ppc4xx/kgdb.S
@@ -75,4 +75,4 @@
 	SYNC
 	blr
 
-#endif /* CFG_CMD_KGDB */
+#endif
diff --git a/cpu/ppc4xx/serial.c b/cpu/ppc4xx/serial.c
index aefa4ca..3f67136 100644
--- a/cpu/ppc4xx/serial.c
+++ b/cpu/ppc4xx/serial.c
@@ -949,7 +949,7 @@
 	return;
 }
 #endif	/* (CONFIG_KGDB_SER_INDEX & 2) */
-#endif	/* CFG_CMD_KGDB */
+#endif
 
 
 #if defined(CONFIG_SERIAL_MULTI)