[msm] Add nandwrite to support flashing apps images over JTAG

Port over nandwrite from legacy to allow flashing of apps images
using JTAG.  nandwrite is an app in LK with its own project name that
runs in its own thread, just like aboot.  Just like aboot can accept
commands to flash images over usb, nandwrite accepts commands over
JTAG interface to allow flashing of apps images.
diff --git a/project/qsd8250_ffa_nandwrite.mk b/project/qsd8250_ffa_nandwrite.mk
new file mode 100644
index 0000000..ef1bf0e
--- /dev/null
+++ b/project/qsd8250_ffa_nandwrite.mk
@@ -0,0 +1,13 @@
+# top level project rules for the qsd8250_ffa_nandwrite project
+#
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+TARGET := qsd8250_ffa
+
+MODULES += app/nandwrite
+
+DEFINES += WITH_DEBUG_JTAG=1
+#DEFINES += WITH_DEBUG_DCC=1
+#DEFINES += WITH_DEBUG_UART=1
+#DEFINES += WITH_DEBUG_FBCON=1
+