Add the comment about sysrq_always_enabled

Thanks to @izh1979 for the idea (and for the rodata idea too).

kconfig_hardened_check/__init__.py

@@ -41,6 +41,7 @@
 #    Should NOT be set:
 #           nokaslr
 #           rodata=off
+#           sysrq_always_enabled
 #           arm64.nobti
 #           arm64.nopauth
 #           arm64.nomte