fairphone-fp3: include touchscreen driver in initfs (MR 3651)

Now that touchscreen driver is supported in kernel, include the module
in initfs so it's available there.

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

device/testing/device-fairphone-fp3/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-fairphone-fp3
 pkgdesc="Fairphone 3"
-pkgver=0.4
-pkgrel=1
+pkgver=0.5
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
@@ -71,5 +71,5 @@ mainline_firmware() {
 }
 
 sha512sums="
-412f09b87067f4fb4a89e28617ca7084aba1c6d27815fd2cc913c78dec19988412127d340bd542c04bcef3ba106e168b6e75bbdeb00b6ca93106b2cf130bd4f4  deviceinfo
+d127a0e6b6f8824e13b4394eae801d7fca46d48c00a0c56d37861e4dc3999cd56af1cee700d0338da65660f347148c6bec3cf48a9a8cab50268df20cab36e292  deviceinfo
 "

device/testing/device-fairphone-fp3/deviceinfo

@@ -9,7 +9,7 @@ deviceinfo_codename="fairphone-fp3"
 deviceinfo_year="2019"
 deviceinfo_dtb_mainline="qcom/sdm632-fairphone-fp3"
 deviceinfo_append_dtb_mainline="true"
-deviceinfo_modules_initfs_mainline="msm panel-fairphone-fp3-hx83112b"
+deviceinfo_modules_initfs_mainline="msm panel-fairphone-fp3-hx83112b himax_hx83112b"
 deviceinfo_arch="aarch64"
 
 # Device related