Enable fast affine bitmap blitters on NEON

Activates the code from: http://review.skia.org/844816

These are quicker than the general purpose routines in certain cases
(particularly when decoding+rotating EXIF-rotated images, for example).

Bug: b/329003512
Change-Id: I97771f39b2ef4bd114a66092bd4d571f34900173
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5473368
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Cr-Commit-Position: refs/heads/main@{#1294918}

skia/config/SkUserConfig.h

@@ -223,8 +223,6 @@ SK_API void SkDebugf_FileLine(const char* file,
 // Max. verb count for paths rendered by the edge-AA tessellating path renderer.
 #define GR_AA_TESSELLATOR_MAX_VERB_COUNT 100
 
-#define SK_IGNORE_FAST_ROTATED_BLITTER
-
 #define SK_USE_LEGACY_MIPMAP_BUILDER
 
 #define SK_SUPPORT_LEGACY_CONIC_CHOP