device-valve-jupiter: set deviceinfo_generate_systemd_boot (MR 4485)

Upstream boot-deploy (me, lol) removed generate_gummiboot,
and now generate_systemd_boot is used to configure both gummiboot and
systemd boot.

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

device/testing/device-valve-jupiter/APKBUILD

 # Maintainer: Clayton Craft <clayton@craftyguy.net>
 pkgname=device-valve-jupiter
 pkgdesc="Valve Steam Deck"
-pkgver=0.1
-pkgrel=2
+pkgver=0.2
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="x86_64"
@@ -64,7 +64,7 @@ gnome_mobile() {
 
 sha512sums="
 f2b0e3bf013b87e13828f95d3db7327c7afee33a0703d764ea5b96f0f791a01af2f2685ab5b17db1729fe68e78fd0e39f3a9b2f53530aa493897066d87b43248  00-scaling-factor.gschema.override
-bb0b8a81278ecd9759f1cf939c360a87f1ba98636b9fae1b52859712ad077b0398625dd7e9b17572c0c7561edaee742c218029fea71979bf55f6c8c1a17f988c  deviceinfo
+48835f168b84dc0e5afeb335075cde91b5e95111821f14e928c8235e91769cb94882dbee69f978f645898cd1d69556d671b74ace60275a79a3c0f704a8c1a0d8  deviceinfo
 766e375e6ef5c3660785eff015bd19c56ecef43eb26825a829c014ba9bea6dfa341f27828f1f1631d231738765d17b0e739c493a2043bdacc7917b6e9513cf40  modules-initfs
 43e5218da859222d54a6a32b618ada8ce14c5f7f1f8e7f0efffadd2df6a05051221ee612fd04d067f956935e4b9eb3321863a2ccd32abcf5fc878e6b0ee84aef  initramfs.modules
 "

device/testing/device-valve-jupiter/deviceinfo

@@ -20,6 +20,6 @@ deviceinfo_framebuffer_landscape="true"
 deviceinfo_kernel_cmdline="console=tty1 fbcon=rotate:1 fbcon=vc:4-6 spi_amd.speed_dev=1 amdgpu.gttsize=8128 amd_iommu=off tsc=directsync"
 # Bootloader related
 deviceinfo_flash_method="none"
-deviceinfo_generate_gummiboot="true"
+deviceinfo_generate_systemd_boot="true"
 deviceinfo_partition_type="gpt"
 deviceinfo_boot_filesystem="fat32"