powerpc: Various typo fixes

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 9bb8ddf..70b5cbc 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -802,7 +802,7 @@
 };
 
 /*
- * Candiate image SG list.
+ * Candidate image SG list.
  *
  * length = VER | length
  */
@@ -852,7 +852,7 @@
  * with individual elements being 16 bits wide to fetch the system
  * wide EPOW status. Each element in the buffer will contain the
  * EPOW status in it's bit representation for a particular EPOW sub
- * class as defiend here. So multiple detailed EPOW status bits
+ * class as defined here. So multiple detailed EPOW status bits
  * specific for any sub class can be represented in a single buffer
  * element as it's bit representation.
  */