[NEW] Added amdfftw, amdlibflame and amdscalapack recipes (#19457)

* [NEW] Added amdfftw, amdlibflame and amdscalapack recipes

Updated base fftw, libflame and netlib-scalapack recipes
to accommodate the above listed AMD Optimizing CPU Libraries
which are a set of numerical routines optimized for AMD platforms.

Updated amdblis spack recipe

amdblis:
	1. updated with amdblis 2.2 release
amdfftw:
	1. "--enable-single" now work as synonym for "--enable-float"
amdlibflame:
	1. Added enable_or_disable_threads() to set value for "--enable-multithreading" flag
Libflame:
	1. Added enable_or_disable_threads() to set value for "--enable-multithreading" flag
	2. Corrected invocation of "enable_or_disable('threads')"

Change-Id: I9da0a2c2c4e2075b7fa2776e7cfe6548a2e0b32f

* Added amd-toolchain-support as maintainers

Added team github account amd-toolchain-support
as maintainers for all the recipes owned by
AMD Optimizing CPU Libraries (AOCL) team

Change-Id: I9a7969bd48fc42cfbb88dd7bd93e0802c6138582

* Incorporated review comments

Updated packages.yaml with aocl components
Handled Flake8 test failures

Change-Id: I0a03f02d8c9f326b2434ec907958c3de3a8e18eb

* Readded accidental removal of stream recipe

amdfftw:
	1. Updated the aocc clang selection as per spack standards
fftw:
	1. Currently apple-clang section is redundant,
	already it is handled in the conflict checks.

Change-Id: Idef4a3f61717eb81f321e0cd16e7ba9619eac846

* Fix for style and docs/validate (pull_request) test

unnumbered format placeholders from {} to {0}

Change-Id: If67a3374177ec067573e5504462d257712fafc05

* changed compiler references to Spack's compiler wrapper:spack_cc, spack_cxx, spack_fc

Change-Id: I7ae29c978fff16e37773913f14c84df232499763

* Removed 'single' variant from amdfftw recipe

Instead of conflict for apple-clang + openmp, handled this senario
via below available feature:
depends_on('llvm-openmp', when='%apple-clang +openmp')

Change-Id: I701b23d83e822a500ca3aaf2b60cc9ace09e13dc

* Added relevant info for users who prefers to use single precision

Change-Id: I3506e21da428ddef5fb7895b5aaed32c2a061ef6

* Minor changes on fftw, amdfftw and libflame

amdfftw:
	1. Removed escape symbol to the single quotes
	2. Rewording the conflict line from Recommended
	to Required

fftw:
	1. Reorded to following recommended sections:
	versions, variants, dependencies, providers,
	patches

libflame:
	1. Added provides entry for 5.1.0 version

Change-Id: I21ebff99b6dfde031763154693ecb3f1fa47b476

* Removed single quote from amdfftw docstring to fix style failures

Change-Id: Ife939a5a2f5ccbc8879b730c7bebfe2fcfef9332

etc/spack/defaults/packages.yaml

@@ -19,10 +19,10 @@ packages:
     providers:
       D: [ldc]
       awk: [gawk]
-      blas: [openblas]
+      blas: [openblas, amdblis]
       daal: [intel-daal]
       elf: [elfutils]
-      fftw-api: [fftw]
+      fftw-api: [fftw, amdfftw]
       gl: [mesa+opengl, mesa18+opengl, opengl]
       glx: [mesa+glx, mesa18+glx, opengl]
       glu: [mesa-glu, openglu]
@@ -31,7 +31,7 @@ packages:
       ipp: [intel-ipp]
       java: [openjdk, jdk, ibm-java]
       jpeg: [libjpeg-turbo, libjpeg]
-      lapack: [openblas]
+      lapack: [openblas, amdlibflame]
       mariadb-client: [mariadb-c-client, mariadb]
       mkl: [intel-mkl]
       mpe: [mpe2]
@@ -42,12 +42,13 @@ packages:
       pil: [py-pillow]
       pkgconfig: [pkgconf, pkg-config]
       rpc: [libtirpc]
-      scalapack: [netlib-scalapack]
+      scalapack: [netlib-scalapack, amdscalapack]
       sycl: [hipsycl]
       szip: [libszip, libaec]
       tbb: [intel-tbb]
       unwind: [libunwind]
       yacc: [bison, byacc]
+      flame: [libflame, amdlibflame]
     permissions:
       read: world
       write: user