wireless-regdb: fix: install firmware files into initrd

crda is not longer required since kernel >=4.15 and kernel
is able to load wireless regulatory database as firmware file

Install wifi and regulatory firmware files in initrd and default rootfs

BugzID: 60107

Signed-off-by: Ramon Moesching <ramon.moesching@netmodule.com>

conf/distro/netmodule-linux-ostree.conf

@@ -11,3 +11,10 @@ OSTREE_COMMIT_SUBJECT = "${IMAGE_BASENAME};${EXTERNALSRC_GIT_SRCREV}"
 KERNEL_IMAGETYPES_sota = "fitImage"
 KERNEL_IMAGETYPE_sota = "fitImage"
 OSTREE_KERNEL = "${KERNEL_IMAGETYPE}-${INITRAMFS_IMAGE}-${MACHINE}-${MACHINE}"
+
+INITRAMFS_PACKAGES = "wireless-regdb-static \
+                      linux-firmware-wl12xx \
+                      linux-firmware-wl18xx \
+                      wlconf-bin \
+                      "
+ROOTFS_BOOTSTRAP_INSTALL_append = " ${INITRAMFS_PACKAGES}"

recipes-core/images/initramfs-ostree-image.bbappend

@@ -0,0 +1,8 @@
+ROOTFS_POSTINSTALL_COMMAND_am335x-nmhw21 += " remove_firmware_bin; "
+
+remove_firmware_bin() {
+    pwd=$PWD
+    cd ${IMAGE_ROOTFS}/lib/firmware
+    find . | egrep "wl128x-fw-4-plt.bin|wl18xx-fw-4.bin|wl18xx-conf.bin|TIInit_11.8.32.bts" -v | egrep 'bts|bin' | xargs rm
+    cd ${pwd}
+}

recipes-core/images/netmodule-linux-image.bb

@@ -27,6 +27,7 @@ FIRMWARE_am335x-nrhw20 = " \
                 "
 
 FIRMWARE_am335x-nmhw21 = " \
+                linux-firmware-wl12xx\
                 linux-firmware-wl18xx\
                 wlconf-bin \
                 "
@@ -52,7 +53,6 @@ BT_TOOLS = " \
 IMAGE_INSTALL_append = " \
                 hostapd \
                 iw \
-                crda \
                 wpa-supplicant \
                 openssh-sftp-server \
                 haveged \
@@ -81,6 +81,7 @@ IMAGE_INSTALL_append = " \
                 ${@bb.utils.contains("MACHINE_FEATURES", "toby-l2", "ublox-gsm-config", "", d)} \
                 ${@bb.utils.contains("MACHINE_FEATURES", "bluetooth", "${BT_TOOLS}", "", d)} \
                 ${FIRMWARE} \
+                wireless-regdb-static \
                 "
 
 IMAGE_INSTALL_append_am335x-nrhw16 = " \