SWDEV-429802 - change address sanitizer variable name to ENABLE_ADDRESS_SANITIZER

This is to bring scripts in compute/ec/prototype in sync which uses this
particular variable to enable address sanitizer across projects.

Change-Id: Ia620e4fd86338554ee3dd57c5690edb919b6e5a5

README.md

@@ -59,4 +59,4 @@ hipcc $HIP_TESTS_DIR/catch/unit/memory/hipPointerGetAttributes.cc -I ./catch/inc
 
 ### Building with address sanitizer
 
-To build catch tests with Address Sanitizer options, use the cmake option `-DASAN_BUILD=ON`
+To build catch tests with Address Sanitizer options, use the cmake option `-DENABLE_ADDRESS_SANITIZER=ON`