device-samsung-i9100: use exynos4 as mainline kernel (MR 1794)

While at it, remove deviceinfo_dev_touchscreen and set DATAFS as system
partition.

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

device/testing/device-samsung-i9100/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-samsung-i9100
-pkgver=2
-pkgrel=1
+pkgver=3
+pkgrel=0
 pkgdesc="Samsung Galaxy SII"
 url="https://postmarketos.org"
 arch="armv7"
@@ -13,7 +13,6 @@ options="!check !archcheck"
 subpackages="
 	$pkgname-kernel-downstream:kernel_downstream
 	$pkgname-kernel-mainline:kernel_mainline
-	$pkgname-kernel-mainline_exynos:kernel_mainline_exynos
 	$pkgname-nonfree-firmware:nonfree_firmware
 	$pkgname-weston:weston
 "
@@ -41,12 +40,6 @@ kernel_downstream() {
 
 kernel_mainline() {
 	pkgdesc="Close to mainline kernel"
-	depends="linux-samsung-i9100-mainline mesa-dri-gallium"
-	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
-}
-
-kernel_mainline_exynos() {
-	pkgdesc="Close to mainline kernel (exynos4 package)"
 	depends="linux-postmarketos-exynos4 mesa-dri-gallium"
 	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
 }
@@ -63,6 +56,6 @@ weston() {
 		"$subpkgdir"/etc/xdg/weston/weston.ini
 }
 
-sha512sums="f7d0864c8c2c0a122b95eb21d396c1c8f871c27c3b5f7c9cac135a7f66f6d1501624fb99b70c8b9f009a59fb30e86c919e90f7f2c8e090399153a0cd923dfe42  deviceinfo
+sha512sums="52222377a11999c05209135543c32737882c1933f455ef2cd8be869580cd27b12008904b5185caefb01d01ade64c53cd4791ad8cd7940fd550d41ee1200223e4  deviceinfo
 089635daddd88eec35451bfe98dc3713035e3623c896dd21305b990ecf422e8fbb54e010cf347919bbb3a7385f639ab119280477fe0783df3228168d97d96fc6  90-android-touch-dev.rules
 de794566118f1744d068a94e6a75b61d43f6749a4b0871a5270fa7a2048164d609c71fcffa61845c2a7dd4cb5fbeb72c0e4f8b73b382f36d6ff0bcc9b8a5ae25  weston.ini"

device/testing/device-samsung-i9100/deviceinfo

@@ -6,8 +6,8 @@ deviceinfo_name="Samsung Galaxy SII"
 deviceinfo_manufacturer="Samsung"
 deviceinfo_codename="samsung-i9100"
 deviceinfo_year="2011"
-deviceinfo_append_dtb_mainline_exynos="true"
-deviceinfo_dtb_mainline_exynos="exynos4210-i9100"
+deviceinfo_append_dtb_mainline="true"
+deviceinfo_dtb_mainline="exynos4210-i9100"
 deviceinfo_modules_initfs=""
 deviceinfo_external_storage="true"
 deviceinfo_flash_method="heimdall-isorec"
@@ -18,10 +18,9 @@ deviceinfo_chassis="handset"
 deviceinfo_keyboard="false"
 deviceinfo_screen_width="480"
 deviceinfo_screen_height="800"
-deviceinfo_dev_touchscreen="/dev/input/event2"
 
 # Heimdall related
 deviceinfo_flash_heimdall_partition_kernel="KERNEL"
 deviceinfo_flash_heimdall_partition_initfs="RECOVERY"
-deviceinfo_flash_heimdall_partition_system="FACTORYFS"
+deviceinfo_flash_heimdall_partition_system="DATAFS"
 deviceinfo_flash_sparse="true"