Extra bits on block are not reported as error.

**Describe the bug**

Extra bits on stream does not get reported, even after #1598

**To Reproduce**

Decompress: [fea5d210d01530bfeb0130452ef432734b23e744.zst.gz](https://github.com/facebook/zstd/files/8214152/fea5d210d01530bfeb0130452ef432734b23e744.zst.gz)
Execute `zstd -d fea5d210d01530bfeb0130452ef432734b23e744.zst`

**Expected behavior**

The sample contains 15 extra bits when the sequence has been decoded. These should be reported as an error.

zstd with debugging reports:
```
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue (srcSize:17)
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue: case ZSTDds_decompressBlock
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue: case bt_compressed
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decompressBlock_internal (size : 17)
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decodeLiteralsBlock
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decodeLiteralsBlock : cSize=6, nbLiterals=5
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decodeSeqHeaders
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decompressSequences
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decompressSequences_body
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_initFseState : val=44 using 6 bits
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_initFseState : val=0 using 5 bits
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_initFseState : val=18 using 6 bits
zstd-git\lib\decompress\zstd_decompress_block.c: seq: litL=1, matchL=62, offset=1
zstd-git\lib\decompress\zstd_decompress_block.c: regenerated sequence size : 63
zstd-git\lib\decompress\zstd_decompress_block.c: seq: litL=2, matchL=62, offset=1
zstd-git\lib\decompress\zstd_decompress_block.c: regenerated sequence size : 64
zstd-git\lib\decompress\zstd_decompress_block.c: seq: litL=2, matchL=33, offset=1
zstd-git\lib\decompress\zstd_decompress_block.c: regenerated sequence size : 35
zstd-git\lib\decompress\zstd_decompress_block.c: ZSTD_decompressSequences_body: after decode loop, remaining nbSeq : 0
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue: decoded size from block : 162
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue: decoded size from frame : 162
zstd-git\lib\decompress\zstd_decompress.c: ZSTD_decompressContinue: decoded size from frame : 162
zstd-git\lib\decompress\zstd_decompress.c: stage zdss_read
zstd-git\lib\decompress\zstd_decompress.c: neededInSize = 0
fea5d210d01530bfeb0130452ef432734b23e744.zst: 162 bytes
````
Also tested with `v1.5.2` release.

It seems we "agree" on decompression:

```
2022/03/09 12:13:06 Literals: 5 hash: 51174239790196767 and 3 sequences.
2022/03/09 12:13:06 Seq 0 Litlen: 1 mo: 1 (abs) ml: 62 . bits remain: 49
2022/03/09 12:13:06 Seq 1 Litlen: 2 mo: 1 (abs) ml: 62 . bits remain: 31
2022/03/09 12:13:06 Seq 2 Litlen: 2 mo: 1 (abs) ml: 33 . bits remain: 15
2022/03/09 12:13:06 error after: 15 extra bits on block, should be 0
```

**Desktop (please complete the following information):**
- OS: Windown 10, 64 bits.
- Compiler Visual Studio

Edit: Second example, 0 sequences, but 4 bytes left on stream after literal decoding: [447902c8e4faf807f9b8f9c1861abe7990c476dd.zst.gz](https://github.com/facebook/zstd/files/8215370/447902c8e4faf807f9b8f9c1861abe7990c476dd.zst.gz)