ARM: multi_v7_defconfig: Enable some drivers for LS1021A

This patch enables some drivers for LS1021A, such as
GIANFAR, WATCHDOG, AUDIO, QSPI, I2C, ESDHC, EDMA, FTM.
QorIQ Clock Framework and Ramdisk support is also enabled.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>