board: ge: common: add config option for RTC and VPD feature

While this code is being used by all GE platforms its useful
to have it behind a config option for hardware bringup of
new platforms.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

board: ge: bx50v3, imx53ppd: use DM I2C

Remove old (pre-DM) i2c setup code.
Enable DM i2c.
Convert common code to use DM rtc.
Convert common code to read VPD from eeprom partition.
Convert the generic i2c PMIC init code to use the new da9063 driver.

mx53ppd only:
Correct RTC compatible in device tree.
Enable MXC DM i2c driver.
Define CONFIG_SYS_MALLOC_F_LEN so that DM is available in pre-reloc.
Make GPIO banks available during preloc, since initialisation is done
in board_early_init_f().
Add gpio_request() calls to satisfy the DM_GPIO compatibility API.
Remove unused power configuration.

Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Signed-off-by: Ian Ray <ian.ray@ge.com>

board: ge: Move VPD EEPROM configuration to the defconfig

Use standard configuration logic to define EEPROM constants.
Names are based on VPD_EEPROM_ prefix because EEPROM_ is already
used by i2c_eeprom driver.

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@ge.com>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>

board: ge: Move VPD EEPROM configuration to the defconfig

Use standard configuration logic to define EEPROM constants.
Names are based on VPD_EEPROM_ prefix because EEPROM_ is already
used by i2c_eeprom driver.

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@ge.com>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>