Fix KFD sysfs awk fallback to read properties file

The fallback added by this PR reads /sys/class/kfd/kfd/topology/nodes/*/gpu_id
files but matches the literal token 'gpu_id' against their content. Those
files contain only a single decimal value (e.g. '0' for CPU agents, '50432'
for GPU agents), so the regex never matches and 'found' stays 0, making the
fallback a no-op on every host. The properties file in the same directory
contains key/value lines like 'gpu_id 50432' which is what the existing awk
pattern expects.

Reproduced with a synthetic sysfs layout: against gpu_id files awk exits 1;
against properties files awk exits 0 when any node reports gpu_id > 0.

install.sh

@@ -1491,7 +1491,7 @@ _has_amd_rocm_gpu() {
         return 0
     elif [ -e /dev/kfd ] && \
          awk '/gpu_id/{ if ($2+0 > 0) found=1 } END{ exit !found }' \
-             /sys/class/kfd/kfd/topology/nodes/*/gpu_id 2>/dev/null; then
+             /sys/class/kfd/kfd/topology/nodes/*/properties 2>/dev/null; then
         return 0
     fi
     return 1