sysutils/devcpu-data: Fix typo in rc script

The microcode_update rc script spells "required_modules" as
"requires_modules", masking this by duplicating the missing
functionality in its own precmd.

This patch fixes the typo and removes the superfluous precmd.

PR:		272781
Approved by:	sbruno (maintainer)

sysutils/devcpu-data/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	data
 PORTVERSION=	20230617
+PORTREVISION=	1
 CATEGORIES=	sysutils
 MASTER_SITES=	# none
 PKGNAMEPREFIX=	devcpu-

sysutils/devcpu-data/files/microcode_update.in

@@ -21,22 +21,11 @@
 name="microcode_update"
 rcvar=microcode_update_enable
 stop_cmd=":"
-start_precmd="microcode_update_prepare"
 start_cmd="microcode_update_start"
-requires_modules="cpuctl"
+required_modules="cpuctl"
 
 CMT="/usr/sbin/cpucontrol"
 
-microcode_update_prepare()
-{
-	if ! kldstat -q -m cpuctl; then
-		if ! kldload cpuctl > /dev/null 2>&1; then
-			warn "Can't load cpuctl module."
-			return 1
-		fi
-	fi
-}
-
 microcode_update_start()
 {
 	echo "Updating CPU Microcode..."