Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/arch/arm/mach-omap2/mux2430.h b/arch/arm/mach-omap2/mux2430.h
index adbea0d..9fd9314 100644
--- a/arch/arm/mach-omap2/mux2430.h
+++ b/arch/arm/mach-omap2/mux2430.h
@@ -22,7 +22,7 @@
  * absolute addresses.  The name in the macro is the mode-0 name of
  * the pin.  NOTE: These registers are 8-bits wide.
  *
- * Note that these defines use SDMMC instead of MMC for compability
+ * Note that these defines use SDMMC instead of MMC for compatibility
  * with signal names used in 3630.
  */
 #define OMAP2430_CONTROL_PADCONF_GPMC_CLK_OFFSET		0x000