SWDEV-321112 - Use GNUInstallDirs

Use GNUInstallDirs variables to determine the location of LIBDIR, BINDIR, INCLUDEDIR, DOCDIR

Note that CMAKE_INSTALL_LIBDIR is overriden, since the default for RHEL
is lib64, but ROCm packaging wants it to be lib always. Distros or users
can easily override this.

Change-Id: I616152ccd2bc1f5a60bffa940312b38ca6e88c04

RPM/post.in

@@ -1,5 +1,5 @@
 # left-hand term originates from ENABLE_LDCONFIG = ON/OFF at package build
 if [ "@ENABLE_LDCONFIG@" == "ON" ]; then
-  echo -e "@CPACK_PACKAGING_INSTALL_PREFIX@/lib\n@CPACK_PACKAGING_INSTALL_PREFIX@/lib64" > /etc/ld.so.conf.d/x86_64-librocm_smi_lib.conf
+  echo -e "@CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBDIR@" > /etc/ld.so.conf.d/x86_64-librocm_smi_lib.conf
   ldconfig
 fi

RPM/postun.in

@@ -6,4 +6,4 @@ if [ $1 -le 1 ] && [ "@ENABLE_LDCONFIG@" == "ON" ]; then
 fi
 
 # remove pyc file generated by python
-rm -rf @CPACK_PACKAGING_INSTALL_PREFIX@/libexec/rocm_smi/__pycache__
+rm -rf @CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBEXECDIR@/rocm_smi/__pycache__