mt7603: core: do not use magic numbers in mt7603_reg_map

Use register definitions instead of magic numbers in mt7603_reg_map
Signed-off-by: NLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7603/core.c

@@ -53,8 +53,8 @@ irqreturn_t mt7603_irq_handler(int irq, void *dev_instance)
 
 u32 mt7603_reg_map(struct mt7603_dev *dev, u32 addr)
 {
-	u32 base = addr & GENMASK(31, 19);
-	u32 offset = addr & GENMASK(18, 0);
+	u32 base = addr & MT_MCU_PCIE_REMAP_2_BASE;
+	u32 offset = addr & MT_MCU_PCIE_REMAP_2_OFFSET;
 
 	dev->bus_ops->wr(&dev->mt76, MT_MCU_PCIE_REMAP_2, base);