Remove unused (and nonexistent) functions ZHETRD_SY2SB and ZHETRD_SB2ST from comment and EXTERNAL declaration

Remove unused (and nonexistent) ZHETRD_SY2SB and ZHETRD_SB2ST

ZHBTRD_HB2ST  should be ZHETRD_HB2ST

LAPACK: fix missing comma on continued lines

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

LAPACKE: fix wrong matrix size in ?ormbr

Changes made upstream in Reference LAPACK in
https://github.com/Reference-LAPACK/lapack/pull/128

Power8 inline assembly fixes

LAPACKE: fix wrong number of columns in ?ormlq

Correct Apollo Lake CPUID identification in dynamic_arch builds

Copied from lapack https://github.com/Reference-LAPACK/lapack/pull/127  by vladimir-ch (with earlier changes from echeresh's  
PR 115 "lapacke_*ormlq_work: move declarations under if" there as they touched some of the same files)

CPUID mappings for Core i5-7600K (Kaby Lake)

Quoting patch author amodra from #1078
Lots of issues here.
- The vsx regs weren't listed as clobbered.
- Poor choice of vsx regs, which along with the lack of clobbers led to
  trashing v0..v21 and fr14..fr23.  Ideally you'd let gcc choose all
  temp vsx regs, but asms currently have a limit of 30 i/o parms.
- Other regs were clobbered unnecessarily, seemingly in an attempt to
  clobber inputs, with gcc-7 complaining about the clobber of r2.
  (Changed inputs should be also listed as outputs or as an i/o.)
- "r" constraint used instead of "b" for gprs used in insns where the
  r0 encoding means zero rather than r0.
- There were unused asm inputs too.
- All memory was clobbered rather than hooking up memory outputs with
  proper memory constraints, and that and the lack of proper memory
  input constraints meant the asms needed to be volatile and their
  containing function noinline.
- Some parameters were being passed unnecessarily via memory.
- When a copy of a

Build only openblas.pc for pkg-config and install it from cmake as well

Update cmakefiles for netlib 3.7.0

Update cmakefiles with changes from netlib 3.6.1

Restore cmake install target

Add CMAKE install target (based on patch provided by PrimarchOfTheSpaceWolves in #957)
This was originally merged as 988 but accidentally reverted by my subsequent PR the following day

Install pkg-config files

Enable EXCAVATOR kernels for A12-9800

LAPACKE: fix incorrect value of lda_t in lapacke_?laswp_work

Fixed in Reference LAPACK in commit:

07e1fbd897

More optimized implementations for ThunderX2T99