Fixing env HCC_HOME and HIP_PATH

[ROCm/roctracer commit: 2007136c1c]

projects/roctracer/cmake_modules/env.cmake

@@ -68,10 +68,10 @@ endif()
 set ( HCC_HOME "/opt/rocm/hcc" )
 set ( HIP_PATH "/opt/rocm/hip" )
 if ( DEFINED ENV{HCC_HOME} )
-  set ( HCC_HOME ENV{HCC_HOME} )
+  set ( HCC_HOME $ENV{HCC_HOME} )
 endif()
 if ( DEFINED ENV{HIP_PATH} )
-  set ( HIP_PATH ENV{HIP_PATH} )
+  set ( HIP_PATH $ENV{HIP_PATH} )
 endif()
 set ( HCC_INC_DIR "${HCC_HOME}/include" )
 set ( HIP_INC_DIR "${HIP_PATH}/include" )