sunxi_sata: perf. fix from linux

[Artturi Alm <artturi.alm%gmail.com@localhost>]

Hi,

i just saw something interesting[0]; write speeds *3,
and thought you'd like to have this too. :]

-Artturi

[0] https://lkml.org/lkml/2019/5/12/161


diff --git a/sys/arch/arm/sunxi/sunxi_sata.c b/sys/arch/arm/sunxi/sunxi_sata.c
index 6a0ce78d991b..632d50e4ca92 100644
--- a/sys/arch/arm/sunxi/sunxi_sata.c
+++ b/sys/arch/arm/sunxi/sunxi_sata.c
@@ -55,8 +55,8 @@ sunxi_sata_channel_start(struct ahci_softc *sc, struct ata_channel *chp)
 	uint32_t val;
 
 	val = AHCI_READ(sc, dma_reg);
-	val &= ~0xff00;
-	val |= 0x4400;
+	val &= ~0xffff;
+	val |= 0x4433;
 	AHCI_WRITE(sc, dma_reg, val);
 }