cgroup/misc: fix misc_res_type kernel-doc warning

Format the kernel-doc for SCALE_HW_CALIB_INVALID correctly to
avoid a kernel-doc warning:

Warning: include/linux/misc_cgroup.h:26 Enum value
 'MISC_CG_RES_TDX' not described in enum 'misc_res_type'

Fixes: 7c035bea9407 ("KVM: TDX: Register TDX host key IDs to cgroup misc controller")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/include/linux/misc_cgroup.h b/include/linux/misc_cgroup.h
index 71cf5bfc..0cb36a3 100644
--- a/include/linux/misc_cgroup.h
+++ b/include/linux/misc_cgroup.h
@@ -19,7 +19,7 @@ enum misc_res_type {
 	MISC_CG_RES_SEV_ES,
 #endif
 #ifdef CONFIG_INTEL_TDX_HOST
-	/* Intel TDX HKIDs resource */
+	/** @MISC_CG_RES_TDX: Intel TDX HKIDs resource */
 	MISC_CG_RES_TDX,
 #endif
 	/** @MISC_CG_RES_TYPES: count of enum misc_res_type constants */