mt76: mt7915: fix a handful of spelling mistakes

There are some spelling mistakes in some literal strings. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c

@@ -173,14 +173,14 @@ mt7915_txbf_stat_read_phy(struct mt7915_phy *phy, struct seq_file *s)
 
 	/* Tx Beamformee Rx NDPA & Tx feedback report */
 	cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));
-	seq_printf(s, "Tx Beamformee sucessful feedback frames: %ld\n",
+	seq_printf(s, "Tx Beamformee successful feedback frames: %ld\n",
 		   FIELD_GET(MT_ETBF_TX_FB_CPL, cnt));
-	seq_printf(s, "Tx Beamformee feedback triggerd counts: %ld\n",
+	seq_printf(s, "Tx Beamformee feedback triggered counts: %ld\n",
 		   FIELD_GET(MT_ETBF_TX_FB_TRI, cnt));
 
 	/* Tx SU counters */
 	cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));
-	seq_printf(s, "Tx single-user sucessful MPDU counts: %d\n", cnt);
+	seq_printf(s, "Tx single-user successful MPDU counts: %d\n", cnt);
 
 	seq_puts(s, "\n");
 }