imx_v4_v5_defconfig: update default configuration

- add new machine APF9328
- update CPUIMX25 -> CPUIMX25SD
- add drivers :
	- MXC nand driver
	- DM9000
	- SMSC Phy
	- SPIdev
	- Led GPIO

Signed-off-by: Eric Bénard <eric@eukrea.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>