device-raspberry-pi{,0}: explicitely use MBR (MR 6171)

Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org>

[ci:skip-build]: already built successfully in CI

device/testing/device-raspberry-pi/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-raspberry-pi
 pkgdesc="Raspberry Pi"
-pkgver=1
-pkgrel=2
+pkgver=2
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="armhf"
@@ -76,7 +76,7 @@ phosh() {
 }
 
 sha512sums="
-f1ee1275f72805f6b04a9b7a111d0111b96c3df37dbff565add99b0007a6e4fecc781a4599b439f2c8308ec5db9db66ae2e6f0db66d9db3327b3013b347474f0  deviceinfo
+85818e2e638b7a2a965937dc1f0c818b3e894afc241f48f2827e4739628bdda57676f8dc08be2e55c6a4985964a2aff0618a024888e17636b50b93c737dbdfd8  deviceinfo
 f70469c3dca65f39ff041af9983eae3b87080fcfb1f8fddb3f58b5a477f708f758f64d46b2195a5bef8d3fa03894e1bf0a427fec5e138d57549392e5b9a6e589  config.txt
 e94c810f973eb6b6d0fb3687ea1d70612ba00e9c5d6b3608390a161e077c5591fd9d232c37b42443c05ed28bb639ca1754422ff35899c5e33d7fc266e0e1ad05  usercfg.txt
 ae3de0b8fec07d3a283dc3c06bf8678eec1e65c9faf0b7f4fdc9fb92751e324d1f8e2fb224dbbf561b7e5a6fb34769bfa1657858375f74b101a130d78e0737e2  cmdline.txt

device/testing/device-raspberry-pi/deviceinfo

@@ -8,6 +8,7 @@ deviceinfo_codename="raspberry-pi"
 deviceinfo_year="2013"
 deviceinfo_arch="armhf"
 deviceinfo_disable_dhcpd="true"
+deviceinfo_partition_type="msdos"
 
 # Device related
 deviceinfo_chassis="embedded"

device/testing/device-raspberry-pi0/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-raspberry-pi0
 pkgdesc="Raspberry Pi Zero"
-pkgver=1
-pkgrel=2
+pkgver=2
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="armhf"
@@ -33,7 +33,7 @@ openrc() {
 }
 
 sha512sums="
-98927951d5c1302798e5af1f79170eb4236d40978fa84f63748b8aba51eef86f5cb8597d63ca37b8bf12bbc3382d09ed8ec842261d3135734f497c22898d2ea9  deviceinfo
+b51fe37ee32b058bd585283804fea9d3c950a2bc9824365b1dfe99ac157a9097b93ecc98e6d6f9e3e20291c9493114ae6145ec164399a70908e3dbfb976f2fce  deviceinfo
 09540960017460809c091457ba9f96b0d12c8a12ef300b77017651bf1492e66440244502ccf22fb8c58d0362751366ef1acf1c5a60b0698c1dda530f0945c17f  modules-initfs
 8e9111b1c131575c372c01125a148c3326871c5789fa99f069918cb5f8ba9a57d7b0da845524a6037635808c3a4ca6d40a8861485a6ed476880106e4e4d2a660  config.txt
 f38e28c13ab50d90dfc06bfae2945aab93551f39ec3cb2a2b65cfeb14dbbf04eb8c80920491106789e9d8f2290fbdac2f5e9adab24fa5f478568df3a638dc8e4  usercfg.txt

device/testing/device-raspberry-pi0/deviceinfo

@@ -8,6 +8,7 @@ deviceinfo_codename="raspberry-pi0"
 deviceinfo_year="2015"
 deviceinfo_arch="armhf"
 deviceinfo_disable_dhcpd="false"
+deviceinfo_partition_type="msdos"
 
 # Device related
 deviceinfo_chassis="embedded"