tests: Clean up sensor driver build_all test

This PR performs a few cleanup actions for the build-all sensor driver
test:

  1. Remove many non-sensors from the test's device tree, including
     wireless radios, LED strips, flash memory, and displays. These
     devices don't belong in this test and in most cases were not being
     compiled anyways due to missing config flags and not being
     status-okay.
  2. For the remaining devices, enable them in the device tree so the
     sensors build and get instantiated. A handful of device nodes that
     caused linker errors due to the driver not instantiating are left
     disabled.
  3. Convert the test I2C and SPI buses into emulated buses to support
     upcoming live testing over these sensor devices.

Signed-off-by: Tristan Honscheid <honscheid@google.com>