Improved vp9_quantize_fp_neon()

Eliminated instructions by using better neon instructions
and rearranging the loop.

On a Nexus 7, vpxenc (in realtime mode, speed -12)
reported a performance improvement of ~1.0%.

Change-Id: I6b1700e79318f647ea67ef25e954c308932950ec
vpxdec: fix compile with --disable-libyuv

Change-Id: I267103595f28c9d9dce2bc38e6db4e371acc7235
vpxenc: fix compile with --disable-libyuv

Change-Id: I13d975d1f0e598e498798e4f33b06483f3a41130
[spatial svc]Add a few different encode frame tests.

1. Clean the code for encode frame tests
2. Add encode w/ and w/o alt reference frame test
3. Add encode SNR layers test
4. Add encode multiple layers but decode partial layers test

Change-Id: Ibd2c9bc02525db584a6f931a98405f2d851b3cd6
Removing unnecessary casts to int64_t.

Change-Id: I156419fdf68056759a4cd4206cc829a00025ef78
Add basic tests for the set_maps example.

Change-Id: I1b1978a7758540bc4e073db8136104847ee8ea3c
vp9_firstpass.c : clear warning re: use of null lc

Change-Id: I80f81f6f4f15766f504c15f8c20258a84bbaa9ac
Merge "vp9_firstpass.c : clear warning re: use of null lc"
vp9_ratectrl.c : remove dead assignment to clear warning

Change-Id: Iacc0b5c58032bde372ed9f99b87712547c4d8454
vp9_firstpass.c : remove unused parm in get_zero_motion

Change-Id: I803bfc0b26804912ccd088d8a90a0f02fc55eed9
vp9_rdopt.c : signed unsigned mismatch in choose_tx_size

Change-Id: Id68736ffa71843b02ee3634edc525219d6e54d4f
vpxdec.c : resolve uninitialized member warning

Change-Id: Icd07ee241b1e36bb4c9e40e592bae259e65f2ce4
Merge "Improved vp9_quantize_fp_neon()"
Merge "vp9_firstpass.c : remove unused parm in get_zero_motion"
Merge "vp9_rdopt.c : signed unsigned mismatch in choose_tx_size"
Merge "vpxdec.c : resolve uninitialized member warning"
Merge "Removing unnecessary casts to int64_t."
Moving frame_is_boosted() to vp9_speed_features.c.

Change-Id: I9261ded5fbba7a625d8224d91be296265a932410
Adding set_rc_buffer_sizes().

Change-Id: I76aab1e4f56a790597104b5c9b0d3543d6982eae
Fix valgrind error in pickmode.

Don't intra transform blocks past the edge of the image.

Change-Id: Ib8de6901ea339f352f6a7c9cd2af64aa2f55fa8a