ANDROID: vendor_hooks: Guard cgroup struct with CONFIG_CGROUPS

See commit 573c7f061d ("ANDROID: Guard hooks with their CONFIG_
options"). Needed to do CGROUPS as well due to cgroup_subsys definition
being guarded by CONFIG_CGROUPS in include/linux/cgroup-defs.h.

Bug: 240404657
Change-Id: Ie51f053a9e82ef8d7d1c149374ac02608717429d
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>

include/trace/hooks/cgroup.h

@@ -9,12 +9,16 @@
 #include <trace/hooks/vendor_hooks.h>
 
 struct cgroup_taskset;
-#ifdef __GENKSYMS__
+#if defined(__GENKSYMS__) || !IS_ENABLED(CONFIG_CGROUPS)
 struct cgroup_subsys;
-struct task_struct;
 #else
 /* struct cgroup_subsys */
 #include <linux/cgroup-defs.h>
+#endif
+
+#ifdef __GENKSYMS__
+struct task_struct;
+#else
 /* struct task_struct */
 #include <linux/sched.h>
 #endif /* __GENKSYMS__ */