Samsung Galaxy Core Prime, Grand Prime and Ace 4 are phones based on MSM8916. They are similar to the other Samsung devices based on MSM8916 with only a few minor differences. This initial commit adds support for: - fortuna3g (SM-G530H) - fortunaltezt (SM-G530Y) - gprimeltecan (SM-G530W) - grandprimelte (SM-G530FZ) - heatqlte (SM-G357FZ) - rossa (SM-G360G) The device trees contain initial support with: - GPIO keys - Regulator haptic - SDHCI (internal and external storage) - USB Device Mode - UART (on USB connector via the SM5502/SM5504 MUIC) - WCNSS (WiFi/BT) - Regulators There are different variants of Grand Prime, with some differences in accelerometer, NFC and panel. Core Prime and Grand Prime are similar, with some differences in MUIC, panel and touchscreen. Ace 4 and Core Prime are similar, with some differences in panel and touchscreen. --- v2: Use interrupt-extended. Drop fuelgauge, sensors and NFC for now.