Txxx/RCW: Split unified RCW to RCWs for sd, spi and nand.

T series boards use unified RCW for sd, spi and nand boot.
Now split txxx_rcw.cfg to txxx_sd_rcw.cfg, txxx_spi_rcw.cfg
and txxx_nand_rcw.cfg for SPI/NAND/SD boot.
And modify RCW[PBI_SRC] for them:
	PBI_SRC=5            for SPI 24-bit addressing
	PBI_SRC=6            for SD boot
	PBI_SRC=14           for IFC NAND boot

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/t208xrdb/t2080_spi_rcw.cfg b/board/freescale/t208xrdb/t2080_spi_rcw.cfg
new file mode 100644
index 0000000..f167495
--- /dev/null
+++ b/board/freescale/t208xrdb/t2080_spi_rcw.cfg
@@ -0,0 +1,19 @@
+#PBL preamble and RCW header
+aa55aa55 010e0100
+
+#For T2080 v1.0
+#SerDes=0x66_0x16, Core=1533MHz, DDR=1600MT/s
+#120c0017 15000000 00000000 00000000
+#66150002 00008400 ec104000 c1000000
+#00000000 00000000 00000000 000307fc
+#00000000 00000000 00000000 00000004
+
+#For T2080 v1.1
+#SerDes=0x66_0x15, Core:1800MHz, DDR:1600MT/s
+#1206001b 15000000 00000000 00000000
+
+#SerDes=0x66_0x15, Core:1800MHz, DDR:1867MT/s
+1207001b 15000000 00000000 00000000
+66150002 00000000 58104000 c1000000
+00800000 00000000 00000000 000307fc
+00000000 00000000 00000000 00000004