Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

drivers/mfd/pcf50633-core.c

@@ -51,7 +51,7 @@ static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
 
 }
 
-/* Read a block of upto 32 regs  */
+/* Read a block of up to 32 regs  */
 int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
 					int nr_regs, u8 *data)
 {
@@ -65,7 +65,7 @@ int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
 }
 EXPORT_SYMBOL_GPL(pcf50633_read_block);
 
-/* Write a block of upto 32 regs  */
+/* Write a block of up to 32 regs  */
 int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
 					int nr_regs, u8 *data)
 {