Jactive board support added

- updated jactive_eur_defconfig
- added hvca_actuator sources to drivers/media/video/msm/actuators/
- added im175 eeprom source file to drivers/media/video/msm/eeprom
- added ifdefs throughout the code for CONFIG_MACH_JACTIVE_EUR
  (and _ATT). Should be compatible with both jf and jactive (only
  jactive eur tested so far)