firmware/firmware-qcom-db410c: provide firmware-qcom-msm8916-wcnss (MR 1315)

The WCNSS firmware from DB410c is also useful for other devices
that can run unsigned firmware (e.g. bq-paella) because it is newer
and reportedly has some WiFi/BT coexistence problems fixed.

To allow easy switching betwen the original firmware from the manufacturer
(firmware-bq-picmt-wcnss) and the newer firmware (firmware-qcom-db410c-wcnss)
we make both packages provide a virtual "firmware-qcom-msm8916-wcnss"
package. The newer version from firmware-qcom-db410c gets a higher
provider_priority so it is installed by default.

However, the user can choose to do "apk add firmware-bq-picmt-wcnss"
to get the original firmware from the manufacturer instead.

firmware/firmware-qcom-db410c/APKBUILD

 pkgname=firmware-qcom-db410c
 pkgver=1034.2.1
-pkgrel=0
+pkgrel=1
 pkgdesc="Firmware for DragonBoard 410c"
 url="https://releases.linaro.org/96boards/dragonboard410c/qualcomm/firmware/"
 subpackages="$pkgname-doc $pkgname-modem $pkgname-wcnss $pkgname-wcnss-nv:wcnss_nv"
@@ -34,6 +34,9 @@ modem() {
 
 wcnss() {
 	pkgdesc="DragonBoard 410c WiFi/BT firmware"
+	provides="firmware-qcom-msm8916-wcnss"
+	provider_priority=100
+
 	install -Dm644 "$srcdir"/wcnss.* -t "$subpkgdir/$_fwdir"
 }