xtensa: add support for the 'xtfpga' evaluation board

The 'xtfpga' board is actually a set of FPGA evaluation boards that
can be configured to run an Xtensa processor.

 - Avnet Xilinx LX60
 - Avnet Xilinx LX110
 - Avnet Xilinx LX200
 - Xilinx ML605
 - Xilinx KC705

These boards share the same components (open-ethernet, ns16550 serial,
lcd display, flash, etc.).

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/cadence/xtfpga/MAINTAINERS b/board/cadence/xtfpga/MAINTAINERS
new file mode 100644
index 0000000..f4a2b94
--- /dev/null
+++ b/board/cadence/xtfpga/MAINTAINERS
@@ -0,0 +1,7 @@
+XTFPGA BOARD
+M:	Max Filippov <jcmvbkbc@gmail.com>
+S:	Maintained
+F:	board/cadence/xtfpga/
+F:	include/configs/xtfpga.h
+F:	configs/xtfpga_defconfig
+F:	drivers/sysreset/sysreset_xtfpga.c