…RSM.

Details:
-This commit addresses the performance optimization(single-thread and
 multi-thread) for DTRSM on zen2.
-This new optimization employs different MC, KC & NC values for TRSM than
 what is being used in other Level-3 routines like DGEMM.
-Changed TRSM framework code to choose these blocksizes for TRSM
 on zen family configurations.
-Added a new field called "trsm_blkszs" to cntx structure in order to
 store TRSM specific block sizes.
-Implemented routines to initialize, set and query the TRSM-specific
 block sizes.
-Defined a new macro "AOCL_BLIS_ZEN" in configure script.
 This macro is automatically defined for zen family architectures.
 It enables us to choose different cache block sizes for TRSM instead of common level-3 block sizes.

Change-Id: Id8557b1c962a316b1edecca9cd582675eaf35fe6
Signed-off-by: Meghana Vankadari <meghana.vankadari@amd.com>
AMD-Internal: [CPUPL-656]