tcg: Upgrade to upstream version.

This switches the full TCG implementation to the upstream version
from the following upstream commit:

  1a8e80d7e82aa385ad887dba5d039e399a18264b

Note that this requires completely reqwriting the softmmu_template.h
declarations to adapt to the new world order where all ld/st helpers
now accepts a CPUArchState* value as their first parameter.

+ This also gets rid of the REGPARM macro, which means that on
  i386, parameters are now passed on the stack instead of using
  registers. As surprising as it is, this doesn't seem to affect
  emulation performance in significant ways when starting the
  emulator with -force-32bit, compared to the latest SDK emulator
  binary. This may be due to the improved binary translator.

Note that this doesn't switch the emulation to use the new
MemoryRegion API, so there are still a few minor differences
with upstream softmmu_*.h headers.

The target-*/ sources have been minimally modified to accomodate
for the changes, and everything seems to work. However, not that
CONFIG_ANDROID_MEMCHECK_MMU hasn't been tested yet.

+ get rid of obsolete softmmu_outside_jit.c

NOTE: There are two important differences with the upstream sources:

  - An '#undef small' in tcg.c used to build the Windows binaries
    with mingw32 on Linux.

  - The declaration of cc_compute_all and cc_compute_c helpers in
    target-i386/helper.h use TCG_CALL_NO_SE instead of
    TCG_CALL_NO_SE_RWG. Otherwise, it's impossible to boot
    an x86 system image properly.

Change-Id: I6ed5c58f237493d29b1cefaff3e0db6f58977fbf
diff --git a/Makefile.target b/Makefile.target
index d3517e1..4b9a3d9 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -52,8 +52,10 @@
 common_LOCAL_CFLAGS += $(EMULATOR_TARGET_CFLAGS)
 
 common_LOCAL_SRC_FILES += \
+    tcg/optimize.c \
     tcg/tcg.c \
     tcg-runtime.c \
+    util/bitops.c \
     util/host-utils.c \
 
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