tests/tcg: enable building for PowerPC

Now we have restored debian-image-powerpc-cross using Debian SID
compilers we can build for 32 bit powerpc. Although PPC32 supports a
range of pages sizes currently only 4k works so the others are
commented out for now.

We can also merge the ppc64 support under the base architecture
directory to avoid too much proliferation of directories.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>

tests/tcg/ppc64le/Makefile.include → tests/tcg/ppc/Makefile.include

+ifeq ($(TARGET_NAME),ppc)
+DOCKER_IMAGE=debian-powerpc-cross
+DOCKER_CROSS_COMPILER=powerpc-linux-gnu-gcc
+else ifeq ($(TARGET_NAME),ppc64le)
 DOCKER_IMAGE=debian-ppc64el-cross
 DOCKER_CROSS_COMPILER=powerpc64le-linux-gnu-gcc
+endif

tests/tcg/ppc/Makefile.target

+# -*- Mode: makefile -*-
+#
+# PPC - included from tests/tcg/Makefile
+#
+
+ifneq (,$(findstring 64,$(TARGET_NAME)))
+# On PPC64 Linux can be configured with 4k (default) or 64k pages (currently broken)
+EXTRA_RUNS+=run-test-mmap-4096 #run-test-mmap-65536
+else
+# On PPC32 Linux supports 4K/16K/64K/256K (but currently only 4k works)
+EXTRA_RUNS+=run-test-mmap-4096 #run-test-mmap-16384 run-test-mmap-65536 run-test-mmap-262144
+endif