ARM: imx_v6_v7_defconfig: Enable Dialog Semiconductor DA9062 driver

The phyCORE-i.MX 6 uses the DA9062/63 PMIC, RTC and Watchdog driver.

Enable these options by default.

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>