pixelflinger: Fix function naming typo: gglBitBlti

From the functionality, the function gglBitBlti() implemented bit-block
(image) transfer operation in which several bitmaps are combined into
one using a raster operator.  Renaming to gglBitBlit() should be
explicit.

Change-Id: I23886623b5421131cf7c7bfb8ec67c3809566c93
diff --git a/libpixelflinger/raster.cpp b/libpixelflinger/raster.cpp
index d751202..32b2a97 100644
--- a/libpixelflinger/raster.cpp
+++ b/libpixelflinger/raster.cpp
@@ -143,7 +143,7 @@
 
 using namespace android;
 
-GGLint gglBitBlti(GGLContext* con, int tmu, GGLint crop[4], GGLint where[4])
+GGLint gglBitBlit(GGLContext* con, int tmu, GGLint crop[4], GGLint where[4])
 {
     GGL_CONTEXT(c, (void*)con);