eeprom: use eeprom_execute_command for all eeprom functions

eeprom: use eeprom_execute_command for all eeprom functions

Update eeprom_execute_command() and related code to accommodate both layout
aware and layout unaware functions.

No functional changes.

Cc: Heiko Schocher <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Igor Grinberg <[email protected]>
Cc: Tom Rini <[email protected]>
Signed-off-by: Nikita Kiryanov <[email protected]>
[trini: Make eeprom_execute_command have ulong for i2c_addr]
Signed-off-by: Tom Rini <[email protected]>