blasfeo_dsyrk_dpotrf_ln() returns incorrect results on X64_AMD_BULLDOZER target

[mkatliar]

Checked against openblas

Actual value:
( 2.7854532671410537            0            0            0            0 )
( 0.83913770035387469 2.9938299960925923            0            0            0 )
( 0.58622882080751648 0.70368090020327312 2.1283975704681657            0            0 )
( 0.38255481974053374 0.48675723887823252 -0.025473476463104543 2.4204282617974231            0 )
( 0.39976739552731955 0.72857415255088964 -0.19353788779731101 0.0968379384920936 2.4809996556130165 )
Expected value:
( 2.7854532671410532            0            0            0            0 )
( 0.83913770035387469 2.9938299960925918            0            0            0 )
( 0.58622882080751648 0.7036809002032729 2.6269317099125673            0            0 )
( 0.38255481974053374 0.48675723887823247 0.23201943119372695 2.48300863498413            0 )
( 0.39976739552731966 0.72857415255088964 0.31399001255216946 0.35722002546495896 2.4445854284358015 )

Starting from column 2 we see that the results differ.

[giaf]

In order to reproduce, I would need values for all parameters like e.g m, n, k, alpha, beta, size of the matrices, ....