Eliminate random build failures due to race condition.

Disable inclusion of unused EFI loader as this is the cause of
the build race condition.

Bug: 73019385

Change-Id: Ie2f9ce6492c768c88f89e80262c1feb03750e0c5
(cherry picked from commit a13cd458a13c68c6a971c57300f5b075f7c20355)
1 file changed