Miscellaneous documentation fixes

This patch gathers miscellaneous minor fixes to the documentation, and comments
in the source code.

Change-Id: I631e3dda5abafa2d90f464edaee069a1e58b751b
Co-Authored-By: Soby Mathew <soby.mathew@arm.com>
Co-Authored-By: Dan Handley <dan.handley@arm.com>
diff --git a/bl31/aarch64/runtime_exceptions.S b/bl31/aarch64/runtime_exceptions.S
index f5be9e0..3265862 100644
--- a/bl31/aarch64/runtime_exceptions.S
+++ b/bl31/aarch64/runtime_exceptions.S
@@ -39,7 +39,7 @@
 	.globl	el3_exit
 
 	/* -----------------------------------------------------
-	 * Handle SMC exceptions seperately from other sync.
+	 * Handle SMC exceptions separately from other sync.
 	 * exceptions.
 	 * -----------------------------------------------------
 	 */
@@ -167,7 +167,7 @@
 	.align	7
 runtime_exceptions:
 	/* -----------------------------------------------------
-	 * Current EL with _sp_el0 : 0x0 - 0x180
+	 * Current EL with _sp_el0 : 0x0 - 0x200
 	 * -----------------------------------------------------
 	 */
 sync_exception_sp_el0:
@@ -199,7 +199,7 @@
 	check_vector_size serror_sp_el0
 
 	/* -----------------------------------------------------
-	 * Current EL with SPx: 0x200 - 0x380
+	 * Current EL with SPx: 0x200 - 0x400
 	 * -----------------------------------------------------
 	 */
 	.align	7
@@ -230,7 +230,7 @@
 	check_vector_size serror_sp_elx
 
 	/* -----------------------------------------------------
-	 * Lower EL using AArch64 : 0x400 - 0x580
+	 * Lower EL using AArch64 : 0x400 - 0x600
 	 * -----------------------------------------------------
 	 */
 	.align	7
@@ -267,7 +267,7 @@
 	check_vector_size serror_aarch64
 
 	/* -----------------------------------------------------
-	 * Lower EL using AArch32 : 0x600 - 0x780
+	 * Lower EL using AArch32 : 0x600 - 0x800
 	 * -----------------------------------------------------
 	 */
 	.align	7