project: fsm9010: Disable scm armv8 calls

LK makes a call into TZ with armv8 scm format to determine if armv8  scm is
supported, since this is not supported for fsm targets scm initialization
failure messages are printed in the logs. Add a compile time flag to disable
armv8 scm style calls to avoid these error messages.

Change-Id: I19c2ee3d513e991c0fe4ffaa18de284832ff9b3d
2 files changed