qcom-armv8a: ensure iq-615-evk firmware is included by default (#1759)

Add the iq-615 firmware packagegroup to
MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS so required firmware
is included by default in qcom-armv8a builds.

Author: ricardosalveti

conf/machine/qcom-armv8a.conf

@@ -84,6 +84,7 @@ MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += " \
     packagegroup-dragonboard410c-firmware \
     packagegroup-dragonboard820c-firmware \
     packagegroup-dragonboard845c-firmware \
+    packagegroup-iq-615-evk-firmware \
     packagegroup-iq-8275-evk-firmware \
     packagegroup-iq-9075-evk-firmware \
     packagegroup-rb1-firmware \