Support new configuration of TRAB board with more memory

Minor cleanup of comments
diff --git a/board/trab/config.mk b/board/trab/config.mk
index 37ed5b1..2cb8eda 100644
--- a/board/trab/config.mk
+++ b/board/trab/config.mk
@@ -8,16 +8,19 @@
 #
 
 #
-# TRAB has 1 bank of 16 MB DRAM
+# TRAB has 1 bank of 16 MB or 32 MB DRAM
 #
 # 0c00'0000 to 0e00'0000
 #
 # Linux-Kernel is expected to be at 0c00'8000, entry 0c00'8000
 #
-# we load ourself to 0cf0'0000
+# we load ourself to 0CF0'0000	/ 0DF0'0000
 #
-# download areas is 0c80'0000
+# download areas is 0C80'0000
 #
 
+sinclude $(TOPDIR)/board/$(BOARDDIR)/config.tmp
 
-TEXT_BASE = 0x0cf00000
+ifndef TEXT_BASE
+TEXT_BASE = 0x0DF00000
+endif