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-pxa/include/mach/zeus.h b/arch/arm/mach-pxa/include/mach/zeus.h
index faa408a..0641f31 100644
--- a/arch/arm/mach-pxa/include/mach/zeus.h
+++ b/arch/arm/mach-pxa/include/mach/zeus.h
@@ -64,7 +64,7 @@
 
 /*
  * CPLD registers:
- * Only 4 registers, but spreaded over a 32MB address space.
+ * Only 4 registers, but spread over a 32MB address space.
  * Be gentle, and remap that over 32kB...
  */