Amazon Kindle Fire (first generation) codename kc1 support

The Amazon Kindle Fire (first generation) codename kc1 is a tablet that was
released by Amazon back in 2011.

It is using an OMAP4430 SoC GP version, which allows running U-Boot and the
U-Boot SPL from the ground up.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
diff --git a/configs/kc1_defconfig b/configs/kc1_defconfig
new file mode 100644
index 0000000..c9cadd9
--- /dev/null
+++ b/configs/kc1_defconfig
@@ -0,0 +1,12 @@
+CONFIG_ARM=y
+CONFIG_OMAP44XX=y
+CONFIG_TARGET_KC1=y
+CONFIG_SPL=y
+CONFIG_SYS_PROMPT="kc1 # "
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_NFS is not set
+CONFIG_SYS_NS16550=y