vf610: add support for Phytec PCM052

Devices supported are:
- NFC (NAND FLASH)
- MMC
- QSPI (SPI NOR FLASH)
- I2C (only bus 2)
- I2C RTC
- I2C EEPROM
- FEC

Patch-series: 2
- remove useless CONFIG_SYS_SPD_BUS_NUM from config
- remove include of config_cmd_default.h
- remove duplicate CONFIG_CMD_NET

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
diff --git a/configs/pcm052_defconfig b/configs/pcm052_defconfig
new file mode 100644
index 0000000..e8dc402
--- /dev/null
+++ b/configs/pcm052_defconfig
@@ -0,0 +1,6 @@
+CONFIG_ARM=y
+CONFIG_TARGET_PCM052=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/phytec/pcm052/imximage.cfg,ENV_IS_IN_NAND"
+CONFIG_NAND_VF610_NFC=y
+CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
+CONFIG_SYS_NAND_VF610_NFC_45_ECC_BYTES=y