Ensure that PathsForModuleSrc works with prebuilts

prebuilt_test is amended to ensure
f2976304 is not broken.

PathsForModuleSrc is called to check if the file is from correct module
(either from source or prebuilt module)

Bug: 130627486
Test: m

Merged-In: Ic5f467fbc2837727df92102530687e967cd5529f
Change-Id: Ic5f467fbc2837727df92102530687e967cd5529f
(cherry picked from commit d4671111)