Fallback to Software/inflateSetDictionary combination does not work correctly

[fhaverkamp]

If there is no GenWQE card available and the code is therefore required to do a software fallback, it fails when inflateSetDictionary is involved. We fall to sw, and when the data is big enough we try reenabling hw, but that does not work, so we fall back to sw again and on the way we mess up the state, since even with sw the total_in does not advance, even though 6 bytes got absorbed. That leads to the following bad situation:

### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=1 
hhh [0xfff879cc0c8] h_inflateInit2_: card_type=0 card_no=-1 zlib_obuf_total=131072
### [0xfff879cc0c8] __inflateInit2_: fallback to software (rc=-2)
### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=0
### [0xfff879cc0c8]    w=0xfff90a62510 strm->state=0xfff8dd02010
### [0xfff879cc0c8] inflate: avail_in=40000 bigger or equal 16384 switching to hardware mode!
### [0xfff879cc0c8] inflateGetDictionary: dictionary=0xfff879c3f60 dictLength=0xfff879cbf60 rc=0
### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=1
hhh [0xfff879cc0c8] h_inflateInit2_: card_type=0 card_no=-1 zlib_obuf_total=131072
### [0xfff879cc0c8] __inflateInit2_: fallback to software (rc=-2)
### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=0
### [0xfff879cc0c8]    w=0xfff90a62510 strm->state=0xfff8dd04010
### [0xfff879cc0c8] inflate:   flush=0 Z_NO_FLUSH next_in=0xfff909a0010 avail_in=40000 next_out=0xfff909ac010 avail_out=40000 total_in=0 total_out=0 crc/adler=00000001
### adler32(len=0)
### [0xfff879cc0c8]            flush=0 Z_NO_FLUSH next_in=0xfff909a0016 avail_in=39994 next_out=0xfff909ac010 avail_out=40000 total_in=0 total_out=0 crc/adler=08410215 rc=2 Z_NEED_DICT
### adler32(len=0)
### adler32(len=6)
### [0xfff879cc0c8] inflateSetDictionary: dictionary=0x2751bd58 dictLength=6 adler32=08410215 rc=0
### [0xfff879cc0c8] inflate: avail_in=39994 bigger or equal 16384 switching to hardware mode!
### [0xfff879cc0c8] inflateGetDictionary: dictionary=0xfff879c3f60 dictLength=0xfff879cbf60 rc=0
### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=1
hhh [0xfff879cc0c8] h_inflateInit2_: card_type=0 card_no=-1 zlib_obuf_total=131072
### [0xfff879cc0c8] __inflateInit2_: fallback to software (rc=-2)
### [0xfff879cc0c8] inflateInit2_: w=0xfff90a62510 windowBits=15 version=1.2.8/1.2.8 stream_size=112 impl=0
### [0xfff879cc0c8]    w=0xfff90a62510 strm->state=0xfff8dd06010
### [0xfff879cc0c8] inflateSetDictionary: dictionary=0xfff879c3f60 dictLength=6 adler32=08410215 rc=-2
### [0xfff879cc0c8] inflateEnd w=0xfff90a62510 rc=0
ERROR: inflate with dict error: -2ERROR: Test termination