kernel/generic: add missing config symbol

Signed-off-by: Stijn Tintel <[email protected]>

target/linux/generic/config-5.10

@@ -4513,6 +4513,7 @@ CONFIG_PROC_SYSCTL=y
 # CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
 # CONFIG_PROFILING is not set
 # CONFIG_PROVE_LOCKING is not set
+# CONFIG_PROVE_RAW_LOCK_NESTING is not set
 # CONFIG_PROVE_RCU is not set
 # CONFIG_PROVE_RCU_LIST is not set
 # CONFIG_PROVE_RCU_REPEATEDLY is not set