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/t208xqds/t2081_spi_rcw.cfg b/board/freescale/t208xqds/t2081_spi_rcw.cfg
new file mode 100644
index 0000000..79ba1f1
--- /dev/null
+++ b/board/freescale/t208xqds/t2081_spi_rcw.cfg
@@ -0,0 +1,8 @@
+#PBL preamble and RCW header
+aa55aa55 010e0100
+#Default SerDes Protocol: 0x6C
+#Core/DDR: 1533Mhz/2133MT/s
+12100017 15000000 00000000 00000000
+6c000002 00008000 58104000 c1000000
+00000000 00000000 00000000 000307fc
+00000000 00000000 00000000 00000004