PXA: Palm Tungsten|C Support

This patch adds support for the Palm Tungsten|C PXA255 board. The support
includes:
- LCD
- MMC
- UART
- NOR

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
diff --git a/boards.cfg b/boards.cfg
index 1145bc8..7b863db 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -59,6 +59,7 @@
 delta		arm	pxa
 innokom		arm	pxa
 lubbock		arm	pxa
+palmtc		arm	pxa
 pleb2		arm	pxa
 xaeniax		arm	pxa
 xm250		arm	pxa