linux-postmarketos-exynos5: update to 6.6.59

Two main changes apart from rebase and config sync:

• Fix broken usb networking by making CONFIG_USB_CDC_COMPOSITE builtin (by @Eisenbahnfan)
• Add mainline support for exynos5420-n2awifi (by @Eisenbahnfan)

Tested on odroid-xu4 and samsung-klimtlte. I planned to test on samsung-manta as well, but seems battery is too deep-discharged on that one.. Since this is essentially a minor update (6.6.41 -> 6.6.59) I am not too worried and think that testing on two devices should be enough.

device/community/device-google-sargo/APKBUILD

@@ -3,7 +3,7 @@
 pkgname=device-google-sargo
 pkgdesc="Google Pixel 3a"
 pkgver=6
-pkgrel=3
+pkgrel=5
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
@@ -48,7 +48,6 @@ package() {
 
 nonfree_firmware() {
 	pkgdesc="Proprietary firmware blobs for the Google Pixel 3a"
-	replaces="hexagonrpcd-openrc"
 	depends="
 		firmware-google-sargo
 		hexagonrpcd
@@ -64,10 +63,12 @@ nonfree_firmware() {
 }
 
 nonfree_firmware_openrc() {
+	replaces="hexagonrpcd-openrc"
 	install_if="$pkgname-nonfree-firmware=$pkgver-r$pkgrel openrc"
 	# Enable HexagonRPCD by default, but not if the user installed this
 	# package then disabled it.
 	install="$subpkgname.post-install"
+	replaces="hexagonrpcd-openrc"
 	# The FastRPC service is only enabled when non-free firmware is installed.
 	install -Dm755 "$srcdir"/no-hexagonrpcd-on-suspend.sh \
 		"$subpkgdir"/etc/elogind/system-sleep/no-hexagonrpcd-on-suspend.sh