Reverted minor temp/wspace changes from b426f9e.

Details:
- Added missing license header to bli_pwr9_asm_macros_12x6.h.
- Reverted temporary changes to various files in 'test' and 'testsuite'
  directories.
- Moved testsuite/jobscripts into testsuite/old.
- Minor whitespace/comment changes across various files.

testsuite/old/jobscripts/runtest.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+cd ~/blis/testsuite 
+rm -rf test_libblis.out
+make clean
+make -j
+./test_libblis.x > test_libblis.out
+echo "TEST DONE"