clang: substitute fpu neon-vfp[3|4] for fpu neon

Clang does not natively support the neon-vfp option
so we will substitute it for neon.
This allows neon-vfp to be set for gcc, and won't cause
clang to error out.

Clang will enable neon and a vfp automatically with supported
cpu's.
Do not set fpu to vfp[3|4] as this may remove neon

Change-Id: I21615d4bd156d24f4e4870c1021c46e74e0d3389
allow oracle to be forced

Change-Id: I9b830be17c02794c11d9a15e9fc6c8ec0b0a9df0
Fix build

Change-Id: I2e951b1b059f40468eb4a8435eb537c937dbd772
Get rid of squisher

Change-Id: Ie36c64d96bc3e8fedc32f7a631fc070b53e9f391
Fix --block

Change-Id: Iadf8e4650d74cc41ff62918e9592d17802db6683
Merge "allow oracle to be forced" into lp5.0
Merge remote-tracking branch 'slim/lp5.0' into lp50s-test