packages: Remove the /boot hack from mtree-to-plist.awk

Currently, files in /boot (other than /boot/kernel) are assigned to the
bootloader package using a filename match in mtree-to-plist.awk.  This
causes some problems, most notably that debug info for userboot ends up
in the utilities-dbg package instead of bootloader-dbg.

Remove the path handling from mtree-to-plist and instead set PACKAGE
in the appropriate Makefiles to put these in the correct package.

While here, move userboot*.so from bootloader-dev to bootloader.

MFC after:	3 days
Reviewed by:	cperciva
Sponsored by:	https://www.patreon.com/bsdivy
Differential Revision:	https://reviews.freebsd.org/D53179

release/scripts/mtree-to-plist.awk

@@ -40,12 +40,6 @@
 		for (i in a) {
 			if (a[i] ~ /^package=/) {
 				pkgname=a[i]
-				if ($1 ~ /^\/boot\//) {
-					if (kernel != "" && $1 ~ /^\/boot\/dtb\//)
-						pkgname="dtb"
-					else if ($1 !~ /^\/boot\/firmware\//)
-						pkgname="bootloader"
-				}
 				gsub(/package=/, "", pkgname)
 			} else if (a[i] == "config") {
 				type="config"

stand/Makefile.inc

@@ -1,5 +1,7 @@
 SUBDIR_PARALLEL=	yes
 
+PACKAGE=		bootloader
+
 # Firmware may not be able to handle branch protection failures
 MK_BRANCH_PROTECTION=	no
 

stand/userboot/Makefile.inc

@@ -1 +1,5 @@
 .include "../Makefile.inc"
+
+# userboot.so should be installed in the base bootloader package,
+# not bootloader-dev.
+NO_DEV_PACKAGE=

sys/conf/dtb.mk

@@ -31,6 +31,8 @@
 
 .include "dtb.build.mk"
 
+PACKAGE?=	dtb
+
 .if !target(install) && !target(realinstall)
 all: ${DTB} ${DTBO}
 realinstall: _dtbinstall