acpi_device_id are not supposed to change at runtime. All functions
working with acpi_device_id provided by <acpi/acpi_bus.h> work with
const acpi_device_id. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
14771 1880 0 16651 410b drivers/staging/media/atomisp/i2c/ov2722.o
File size After adding 'const':
text data bss dec hex filename
14835 1816 0 16651 410b drivers/staging/media/atomisp/i2c/ov2722.o