Modify CONFIG_NFSD_FAULT_INJECTION in config

Updated CONFIG_NFSD_FAULT_INJECTION setting in config to match naming convention

Author: tomassrnka

configs/6.1.158.config

@@ -2557,7 +2557,7 @@ CONFIG_NFSD_V4=y
 CONFIG_NFSD_PNFS=y
 CONFIG_NFSD_V4_SECURITY_LABEL=y
 CONFIG_NFSD_V4_2=y
-CONFIG_NFSD_FAULT_INJECTION=n   # usually off
+# CONFIG_NFSD_FAULT_INJECTION is not set
 CONFIG_GRACE_PERIOD=y
 CONFIG_LOCKD=y
 CONFIG_NFS_COMMON=y