Introduce helper method to determine device type

Based on the front and back camera sensor types, use
the system property to distinguish between FP3 and FP3+.

Issue: PRJ8901-1318
Issue: PRJ8901-1551
Issue: FP3-A11#233
Change-Id: I1d96182221742c33ea2fb0b5b4001120efdf963e
(cherry picked from commit 337c49d89c716f2e1ca9d1a676da4b006840bb49)
1 file changed