accel-config: release 4.0

Release 4.0 mainly adds support for DSA2 and IAA features.

Changes:
[ Colin Ian King ]

• use buildflags.mk, remove hardcoded CFLAGS
• debian/accel-config-test.install fix path on copy

[ Dave Jiang ]

• convert all magic number for 1<<12 to PAGE_SIZE
• fix madvise() call to unmap pages
• add updated idxd.h definition from kernel source

[ Li Zhang ]

• Remove redundant -f 0x0 in iaa_user_test_runner.sh
• Fix dedicated mode wq size 1 failure
• Modify incorrect print information
• Modify block_on_fault in 2g2q_user_2.conf
• Move get_random_value() to accel_test.c
• Add algorithm to do Zcompress8
• Add test code of operation Zcompress8
• Modify script for executing Zcompress8 test
• Add algorithm to do Zdecompress8
• Add test code of operation Zdecompress8
• Modify script for executing Zdecompress8 test
• Add algorithm to do both Encrypt and Decrypt
• Add test code of operation Encrypt
• Modify script for executing Encrypt test
• Add test code of operation Decrypt
• Modify script for executing Decrypt test
• Modify struct in idxd.h for IAA Translation Fetch
• Add test code of IAA Translation Fetch
• Modify script for executing IAA Translation Fetch test
• Add helping information for new parameters
• Add openssl package installation details
• Fix bug of Zcompress8 about input size less 128
• Remove ats_disable config for iax tests
• Add identification for IAA1.0/2.0 platform

[ Nikhil Rao ]

• add per-wq prs disable tests

[ Ramesh Thomas ]

• Update format bitmask attrs to match driver
• Add new API to set and get wq op_config
• Add option to config-wq to set op_config
• Change json listing format of bitmasks
• Add load, save and list config support for op_config
• Update config-wq doc with op_config details
• Add unit test for op_config configuration
• Fix segmentation fault during list cmd in SPR
• Add API to retrieve iaa_cap when available
• Add group->desc_progress_limit support
• Add group->batch_progress_limit support
• Add wq->prs_disable support
• Add device->event_log_size support
• Do not set traffic class in tests
• Skip op_config test if feature not present
• Include IAA support in README
• Fix bug in return value of pasid enabled check

[ Tony Zhu ]

• add DIX Generate operation support
• add translation fetch operation support
• Remove traffic config for iax tests
• Fix dsa_test segmentation fault when do 2G tests