CMakefile update for ROCm 4.0

Starting with ROCm 4.0, the `hipconfig --platform` command will return `amd` (prior return value was `hcc`). Updating the CMakeLists.txt files in the test dirs to account for this change.

test/CMakeLists.txt

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index fa76347..59440cf 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -431,7 +431,7 @@
 
       execute_process(COMMAND ${HIP_PATH}/bin/hipconfig --platform OUTPUT_VARIABLE HIP_PLATFORM)
 
-      if (${HIP_PLATFORM} STREQUAL "hcc")
+      if ((${HIP_PLATFORM} STREQUAL "hcc") OR (${HIP_PLATFORM} STREQUAL "amd"))
 
 	include_directories(${HIP_PATH}/include)
 
@@ -439,7 +439,7 @@
 	ei_add_test(gpu_basic)
 	unset(EIGEN_ADD_TEST_FILENAME_EXTENSION)
 	
-      elseif (${HIP_PLATFORM} STREQUAL "nvcc")
+      elseif ((${HIP_PLATFORM} STREQUAL "nvcc") OR (${HIP_PLATFORM} STREQUAL "nvidia"))
 	message(FATAL_ERROR "HIP_PLATFORM = nvcc is not supported within Eigen")
       else ()
 	message(FATAL_ERROR "Unknown HIP_PLATFORM = ${HIP_PLATFORM}")

unsupported/test/CMakeLists.txt

diff --git a/unsupported/test/CMakeLists.txt b/unsupported/test/CMakeLists.txt
index 298db04..4cb962a 100644
--- a/unsupported/test/CMakeLists.txt
+++ b/unsupported/test/CMakeLists.txt
@@ -381,7 +381,7 @@
 
       execute_process(COMMAND ${HIP_PATH}/bin/hipconfig --platform OUTPUT_VARIABLE HIP_PLATFORM)
 
-      if (${HIP_PLATFORM} STREQUAL "hcc")
+      if ((${HIP_PLATFORM} STREQUAL "hcc") OR (${HIP_PLATFORM} STREQUAL "amd"))
 
 	include_directories(${CMAKE_CURRENT_BINARY_DIR})
 	include_directories(${HIP_PATH}/include)
@@ -407,7 +407,7 @@
 
 	unset(EIGEN_ADD_TEST_FILENAME_EXTENSION)
 
-      elseif (${HIP_PLATFORM} STREQUAL "nvcc")
+      elseif ((${HIP_PLATFORM} STREQUAL "nvcc") OR (${HIP_PLATFORM} STREQUAL "nvidia"))
 	message(FATAL_ERROR "HIP_PLATFORM = nvcc is not supported within Eigen")
       else ()
 	message(FATAL_ERROR "Unknown HIP_PLATFORM = ${HIP_PLATFORM}")