Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index ccaf081..3986500 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -225,7 +225,7 @@
 	/* em_ctl bits */
 	EM_CTL_RST		= (1 << 9), /* Reset */
 	EM_CTL_TM		= (1 << 8), /* Transmit Message */
-	EM_CTL_MR		= (1 << 0), /* Message Recieved */
+	EM_CTL_MR		= (1 << 0), /* Message Received */
 	EM_CTL_ALHD		= (1 << 26), /* Activity LED */
 	EM_CTL_XMT		= (1 << 25), /* Transmit Only */
 	EM_CTL_SMB		= (1 << 24), /* Single Message Buffer */
@@ -281,7 +281,7 @@
 };
 
 struct ahci_host_priv {
-	void __iomem *		mmio;		/* bus-independant mem map */
+	void __iomem *		mmio;		/* bus-independent mem map */
 	unsigned int		flags;		/* AHCI_HFLAG_* */
 	u32			cap;		/* cap to use */
 	u32			cap2;		/* cap2 to use */