- The bli_snormfv_unb_var1( ... ) function returns early in
case of n = 1, and uses the blis macro bli_fabs( ... ) to
set the norm to the absolute value of the element.
- This macro inverts the sign bit even if the element is 0.0.
A check is added to re-invert the sign bit in this case, so
that the norm is set to 0.0 instead of -0.0.
- Added the same early exit condition on bli_dnormfv_unb_var1( ... )
when n = 1.
AMD-Internal: [CPUPL-3923]
Change-Id: If7f5ae41d2acfe89b505549d28215dde319d8c33