pine64-pinephone: lower headphone volume to 70% (MR 2182)

We used to have it at 40% and just bumped it to 100%. With 100%, I can
hear static noise in the headphones when using the PinePhone (pmOS CE)
in a silent room, even if I turn the volume down in Pulseaudio (e.g.
18%-30% in Phosh). This was not the case when we had it at 40%.

70% seems to be the sweet spot, where no static noise can be heard when
using headphones in a silent room, but where volume can still be turned
up to a very high level if necessary.

device/main/device-pine64-pinephone/APKBUILD

@@ -4,8 +4,8 @@
 # Co-Maintainer: Bart Ribbers <bribbers@disroot.org>
 # Co-Maintainer: Clayton Craft <clayton@craftyguy.net>
 pkgname=device-pine64-pinephone
-pkgver=0.26
-pkgrel=1
+pkgver=0.27
+pkgrel=0
 pkgdesc="PINE64 PinePhone"
 url="https://postmarketos.org"
 license="MIT"
@@ -181,7 +181,7 @@ cf7d4a611701745762f19746e40d87b6df14a6b24f2d466c4177b7ab5ee87a048bab719a6c667221
 8adeca98002ff8ee850512f72f2e126348cfa817a1aefdd77d103aee76a6b2e6a024deffcbeef1235ee2fcc766003f55b67cedb3eb06ca92a58d5b81f2bf6848  eg25-pinephone-1.2.toml
 f4b5509fd6a8b23f3667f5e7262b3a19c607a37cb9eaf7d0e93eb826d45c26ec12df4810879bacb8e4042bb83cc80b2b436224c8d47b6d67361369a724bbf7ee  sysrq.conf
 9d4bcc02c6c501b3a205516c8f276ef4293d88edea61ac725887ec28f9f6788320e9f9edd7f1cf29bbf6122acfad2ef5b3ad5e4b33763fe867bd23d2ac17ed5c  uboot-script.cmd
-0af0b6cc63087f94e0efe4074f16b223f3ebc1c35fb7aeed1112f579adaee4efb9454b4f9a775117d7e0437e4236a81832a59845a39355cecf588afbcb0877c8  HiFi.conf
+aef9f00f1d327b11640c4dbcb7b6ad5b0bac3118e262af5d7d6a37d87757559856438c0adea834f03752725876c3f857ed903cdfaaf678459bbcd7633d523ded  HiFi.conf
 e852b48a687f9b2a0eca444aa3d00a1818aead9f5e5d28e070b51c9d6f8ec648e66f1d88e2bfa94d74533f9ffb9aacc1703da2a06693f85fa04ff97fd7528012  PinePhone.conf
 6e226e8dc39a438629f443a33e1ba7ea5f7f1a08b98ec58b2bf97036e549d3ce9898de708020a632f4fd2f9d6540a621331e4d2c406c1e729d073113aff55ec3  VoiceCall.conf
 "

device/main/device-pine64-pinephone/ucm/HiFi.conf

@@ -124,7 +124,7 @@ SectionDevice."Headphones" {
 	EnableSequence [
 		cset "name='AIF1 DA0 Stereo Playback Route' Stereo"
 		cset "name='Headphone Playback Switch' on"
-		cset "name='Headphone Playback Volume' 100%"
+		cset "name='Headphone Playback Volume' 70%"
 	]
 
 	DisableSequence [