device-nokia-n900: explicitly choose msdos partitioning scheme

u-boot on the Nokia N900 cannot boot from GPT, which will soon be the default
scheme. Hence choose msdos explicitly.

device/community/device-nokia-n900/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Sicelo <absicsz@gmail.com>
 # Co-Maintainer: Danct12 <danct12@disroot.org>
 pkgname=device-nokia-n900
-pkgver=29
+pkgver=30
 pkgrel=0
 pkgdesc="Nokia N900"
 url="https://postmarketos.org"
@@ -215,7 +215,7 @@ ff51909873160c2d4c6f0c0119b6d4a02751df29f571b8596b4bc8b04ce2541913c11a583b0e5dab
 67acc17a33bc75113300393b4a5bba15319014032407e774d079abf310368e75f4f697dbb4856ba2d2d8ea184b056bb33561f42918de3ee91ab6a77df89a133c  asound.state.speakers
 3d55e34b95791636e44a5f41754f3d0de039dbba41f7a556d43a95c9e64afcfa930046b4b96b40020b6f196096ffba93514682927e32fa4488686fdd19c6da5a  backlight-enable.sh
 e6bbac8de1a198ba716f44ade76606e1e0adcc574156b855ac41be5eb5308389d3277fd89cc34b119fbc33d9801ab9f79a6ff213392596bff40bc17e931c05ef  device-nokia-n900.start
-2463008d270ed09342f15b51f24ea455bd884021f95397991b85616b6840a6608d91cd1fc43186094f5c3d1bd25e88c16aa9ead07b018aea3d93cd2359bba0b1  deviceinfo
+40aaeb44941a988ab8ec58d331bc6cd42c4a23c6b6e8fc302f9216a38b46baab38d0a0137606a5b7959a51326983c03d684615c5ba9c58b0e36314ec8c49cfbb  deviceinfo
 f48b8dd7297d03008f73e1ecd55b77ace535ecb03f9bdf021123b96fb5f4fb491ff4c532e226b835c8118fa8d505cc4c635a2b604a3e42a162746021552a551c  modules-initfs
 826a3790b49324c1e61c75b6c0ffc043a2a1d7c13a8c554fb5eae4977af47a1ca93d70ef8c783d712b953b70e18ae58fa4c6a49bf97263398a01a0c4f91ebc8f  i3blocks.conf
 506accabcf9fb3e2a270228ea53fdcb57f51092d6e7126a631af8eed697cd882cc805b19cf255422284bec12c928b58219d173a4a790d784db5335a059b6bb4f  i3wm.conf

device/community/device-nokia-n900/deviceinfo

@@ -22,3 +22,4 @@ deviceinfo_swap_size_recommended="1024"
 # Bootloader related
 deviceinfo_flash_method="0xffff"
 deviceinfo_generate_legacy_uboot_initfs="true"
+deviceinfo_partition_type="msdos"