lg-hammerhead: add linux-firmware-cypress package dependency (MR 1969)

Cypress bought the brcm WiFi stuff from broadcom so they want their firmware to
be called cyfmac instead of brcmfmac
a lot of brcmfmac firmware is now symlinked to cyfmac

device/testing/device-lg-hammerhead/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-lg-hammerhead
 pkgver=2
-pkgrel=23
+pkgrel=24
 pkgdesc="Google Nexus 5"
 url="https://postmarketos.org"
 arch="armv7"
@@ -55,7 +55,7 @@ weston() {
 
 nonfree_firmware() {
 	pkgdesc="WiFi, GPU, Modem and ADSP firmware"
-	depends="linux-firmware-qcom linux-firmware-brcm firmware-adreno firmware-lg-hammerhead-adsp firmware-lg-hammerhead-modem firmware-lg-hammerhead-bluetooth msm-modem-rpmsg"
+	depends="linux-firmware-qcom linux-firmware-brcm linux-firmware-cypress firmware-adreno firmware-lg-hammerhead-adsp firmware-lg-hammerhead-modem firmware-lg-hammerhead-bluetooth msm-modem-rpmsg"
 	mkdir "$subpkgdir"
 }