Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c
index ef0aba0..41b8cdc 100644
--- a/drivers/mtd/devices/pmc551.c
+++ b/drivers/mtd/devices/pmc551.c
@@ -351,7 +351,7 @@
  * Fixup routines for the V370PDC
  * PCI device ID 0x020011b0
  *
- * This function basicly kick starts the DRAM oboard the card and gets it
+ * This function basically kick starts the DRAM oboard the card and gets it
  * ready to be used.  Before this is done the device reads VERY erratic, so
  * much that it can crash the Linux 2.2.x series kernels when a user cat's
  * /proc/pci .. though that is mainly a kernel bug in handling the PCI DEVSEL
@@ -540,7 +540,7 @@
 
 	/*
 	 * Check to make certain the DEVSEL is set correctly, this device
-	 * has a tendancy to assert DEVSEL and TRDY when a write is performed
+	 * has a tendency to assert DEVSEL and TRDY when a write is performed
 	 * to the memory when memory is read-only
 	 */
 	if ((cmd & PCI_STATUS_DEVSEL_MASK) != 0x0) {