MAME: optmization needs way too much ram on 32 bit

Optimization=3 is the default, set it to 1 for 32 bit.

games-emulation/mame/mame-0.210.recipe

@@ -28,6 +28,7 @@ ARCHITECTURES="!x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86"
 
 bits=64
+optimize=3
 makejobs=$jobArgs
 commandBinDir=$binDir
 commandSuffix=$secondaryArchSuffix
@@ -36,6 +37,7 @@ if [ "$targetArchitecture" = x86_gcc2 ]; then
 	commandBinDir=$prefix/bin
 	commandSuffix=
 	makejobs=1
+	optimize=1
 fi
 
 PROVIDES="
@@ -145,6 +147,7 @@ BUILD()
 		TOOLS=1 \
 		PRECOMPILE=0 \
 		NOWERROR=1 \
+		OPTIMIZE=$optimize \
 		USE_SYSTEM_LIB_EXPAT=1 \
 		USE_SYSTEM_LIB_ZLIB=1 \
 		USE_SYSTEM_LIB_JPEG=1 \