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/include/asm/fpstate.h b/arch/arm/include/asm/fpstate.h
index ee5e03e..3ad4c10 100644
--- a/arch/arm/include/asm/fpstate.h
+++ b/arch/arm/include/asm/fpstate.h
@@ -18,7 +18,7 @@
  * VFP storage area has:
  *  - FPEXC, FPSCR, FPINST and FPINST2.
  *  - 16 or 32 double precision data registers
- *  - an implementation-dependant word of state for FLDMX/FSTMX (pre-ARMv6)
+ *  - an implementation-dependent word of state for FLDMX/FSTMX (pre-ARMv6)
  * 
  *  FPEXC will always be non-zero once the VFP has been used in this process.
  */