net/wifi-firmware-*: use metaport for "base" and switch to Makefile.inc

Rename the wifi-firmware-base to wifi-firmware-kmod (similar to
gpu-firmware-mod).  The former was never build so technically it
is no move.  Make the new subdir a metaport including all
wireless firmware.
Move the old Makefile to Makefile.inc and adjust the child ports
accordingly.

This solves two problems: (1) the base port is now buildable and (2)
there is a single port to depend on to add all the needed firmware
files to, e.g., put on a release media.

Suggested by:	amdmi3
PR:		270742
Reviewed by:	ehaupt, jrm
Approved by:	ehaupt, jrm
Differential Revision: https://reviews.freebsd.org/D40014

net/Makefile

@@ -1584,7 +1584,7 @@
     SUBDIR += widentd
     SUBDIR += wifi-firmware-ath10k-kmod
     SUBDIR += wifi-firmware-ath11k-kmod
-    SUBDIR += wifi-firmware-base
+    SUBDIR += wifi-firmware-kmod
     SUBDIR += wifi-firmware-mt76-kmod
     SUBDIR += wifi-firmware-rtw88-kmod
     SUBDIR += wifi-firmware-rtw89-kmod

net/wifi-firmware-ath10k-kmod/Makefile

@@ -1,4 +1,4 @@
-BASEDIR=	${.CURDIR}/../wifi-firmware-base
+BASEDIR=	${.CURDIR}/../wifi-firmware-kmod
 
 FWDRV=		ath10k
 FWSUBDIR=	ath10k
@@ -85,4 +85,4 @@ DISTFILES_lic=	\
 	${DISTFILES_QCA9984_hw10_lic} \
 	${DISTFILES_QCA99X0_hw20_lic}
 
-.include "${BASEDIR}/Makefile"
+.include "${BASEDIR}/Makefile.inc"

net/wifi-firmware-ath11k-kmod/Makefile

@@ -1,4 +1,4 @@
-BASEDIR=	${.CURDIR}/../wifi-firmware-base
+BASEDIR=	${.CURDIR}/../wifi-firmware-kmod
 
 FWDRV=		ath11k
 FWSUBDIR=	ath11k
@@ -102,4 +102,4 @@ DISTFILES_lic=	\
 #	${DISTFILES_WCN6855_hw20_lic} \
 #	${DISTFILES_WCN6750_hw10_lic}
 
-.include "${BASEDIR}/Makefile"
+.include "${BASEDIR}/Makefile.inc"

net/wifi-firmware-kmod/Makefile

@@ -0,0 +1,18 @@
+PORTNAME=	wifi-firmware-kmod
+PORTVERSION=	20230508
+CATEGORIES=	net
+
+MAINTAINER=	bz@FreeBSD.org
+COMMENT=	Firmware modules for WiFi NIC drivers
+WWW=		https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
+
+RUN_DEPENDS=	\
+		wifi-firmware-ath10k-kmod>0:net/wifi-firmware-ath10k-kmod \
+		wifi-firmware-ath11k-kmod>0:net/wifi-firmware-ath11k-kmod \
+		wifi-firmware-mt76-kmod>0:net/wifi-firmware-mt76-kmod \
+		wifi-firmware-rtw88-kmod>0:net/wifi-firmware-rtw88-kmod \
+		wifi-firmware-rtw89-kmod>0:net/wifi-firmware-rtw89-kmod
+
+USES=		metaport
+
+.include <bsd.port.mk>

net/wifi-firmware-kmod/pkg-descr

@@ -0,0 +1 @@
+Meta port for the firmware modules for the WiFi NIC drivers.

net/wifi-firmware-mt76-kmod/Makefile

@@ -1,4 +1,4 @@
-BASEDIR=	${.CURDIR}/../wifi-firmware-base
+BASEDIR=	${.CURDIR}/../wifi-firmware-kmod
 
 FWDRV=		mt76
 FWSUBDIR=	mediatek
@@ -28,4 +28,4 @@ DISTFILES_fw= \
 	${DISTFILES_mt7921}
 DISTFILES_lic=
 
-.include "${BASEDIR}/Makefile"
+.include "${BASEDIR}/Makefile.inc"

net/wifi-firmware-rtw88-kmod/Makefile

@@ -1,4 +1,4 @@
-BASEDIR=	${.CURDIR}/../wifi-firmware-base
+BASEDIR=	${.CURDIR}/../wifi-firmware-kmod
 
 FWDRV=		rtw88
 FWSUBDIR=	rtw88
@@ -31,4 +31,4 @@ DISTFILES_fw= \
 DISTFILES_lic= \
 	${FWSUBDIR}/README${DISTURL_SUFFIX}
 
-.include "${BASEDIR}/Makefile"
+.include "${BASEDIR}/Makefile.inc"

net/wifi-firmware-rtw89-kmod/Makefile

@@ -1,4 +1,4 @@
-BASEDIR=	${.CURDIR}/../wifi-firmware-base
+BASEDIR=	${.CURDIR}/../wifi-firmware-kmod
 
 FWDRV=		rtw89
 FWSUBDIR=	rtw89
@@ -25,4 +25,4 @@ DISTFILES_fw= \
 
 DISTFILES_lic=
 
-.include "${BASEDIR}/Makefile"
+.include "${BASEDIR}/Makefile.inc"