pine64-rockpro64: fix boot part start position in deviceinfo (!1262)

Otherwise the firmware image is too big and can't be written to the
specified storage

device/testing/device-pine64-rockpro64/APKBUILD

@@ -1,8 +1,8 @@
 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-pine64-rockpro64
-pkgdesc="PINE64 RockPro64"
 pkgver=0.1
-pkgrel=1
+pkgrel=2
+pkgdesc="PINE64 RockPro64"
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
@@ -10,10 +10,9 @@ options="!check !archcheck"
 depends="postmarketos-base linux-postmarketos-rockchip u-boot-rockpro64 mesa-git-dri-gallium"
 makedepends="devicepkg-dev"
 subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
-source="
-	deviceinfo
+source="deviceinfo
 	extlinux.conf
-"
+	"
 
 build() {
 	devicepkg_build $startdir $pkgname
@@ -31,5 +30,5 @@ nonfree_firmware() {
 	mkdir "$subpkgdir"
 }
 
-sha512sums="90777b2c770461bb9a9ca39e754dfd98b5dd7f753f3f05266c72964dfc225cb36fcb1702ac8d95eeaf139c94a75bf9306281618315629db85bd9f7feb8deadc7  deviceinfo
+sha512sums="9959812f0a0044f6c6a304e635051fc002bb46f0398cbea00e1ad10cbb2d5c6fa418f8979ef9ccbc403e43d59ada7a84c523de34b9273227a91593c8fc8901f9  deviceinfo
 bd974f4f2b27b868bd63d0134c3e4c062a786be781d2585f42326cfb135211cb038be8d769ec178b94cfe860290d2e502e5eb88ff077ea04b808980237cf624c  extlinux.conf"

device/testing/device-pine64-rockpro64/deviceinfo

@@ -20,3 +20,4 @@ deviceinfo_screen_height="1080"
 # Bootloader related
 deviceinfo_flash_method="none"
 deviceinfo_sd_embed_firmware="u-boot/pine64-rockpro64/u-boot-rockchip.bin:32"
+deviceinfo_boot_part_start="32768"