device-samsung-j1mini3g: Use Samsung's sparse image format

Part-of: !6349

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

device/testing/device-samsung-j1mini3g/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-samsung-j1mini3g
 pkgdesc="Samsung Galaxy J1 mini"
-pkgver=1
+pkgver=2
 pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
@@ -21,5 +21,5 @@ package() {
 
 
 sha512sums="
-efeaf1c701ed856aeb86fdfbf90b16eaf2385b5db27330a2acb10cdd04c129abc4063ab3242fb5315bf84f9b3ce1cc8b22984e6ef337ea23f2fb896e4dee639d  deviceinfo
+3c2d3af8812aba9c74cb62c873d1e3c6545386701567146bfc1b3eb0e7edb221f5cfab38de4ab47f28420d4f6b4a98ddf958d065fa2117ef8500716084c3f7a2  deviceinfo
 "

device/testing/device-samsung-j1mini3g/deviceinfo

@@ -28,3 +28,5 @@ deviceinfo_flash_offset_ramdisk="0x01000000"
 deviceinfo_flash_offset_second="0x00f00000"
 deviceinfo_flash_offset_tags="0x00000100"
 deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_sparse="true"
+deviceinfo_flash_sparse_samsung_format="1"