Vectorize R5G6B5 framebuffer present.

Change-Id: I40922c89056cacd00f9d728dfe1f3f12824c81a1
Reviewed-on: https://swiftshader-review.googlesource.com/3253
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/Reactor/LLVMReactor.cpp

diff --git a/src/Reactor/LLVMReactor.cpp b/src/Reactor/LLVMReactor.cpp
index 42578fe..480ac6b 100644
--- a/src/Reactor/LLVMReactor.cpp
+++ b/src/Reactor/LLVMReactor.cpp
@@ -4887,7 +4887,7 @@
 
 			// Each Short is packed into each Int in the (Short | Short) format.
 			// Shifting by 16 will retrieve the original Short value.
-			// Shitfing an Int will propagate the sign bit, which will work
+			// Shifting an Int will propagate the sign bit, which will work
 			// for both positive and negative values of a Short.
 			*this >>= 16;
 		}