android: rename LLVM_VERSION_PATCH to MESA_LLVM_VERSION_PATCH

Fixes: 797f4eacea8(configure.ac: rename LLVM_VERSION_PATCH to avoid
conflict with llvm-config.h)
Cc: 11.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>

Android.common.mk

@@ -70,7 +70,7 @@ endif
 
 ifeq ($(MESA_ENABLE_LLVM),true)
 LOCAL_CFLAGS += \
-	-DHAVE_LLVM=0x0305 -DLLVM_VERSION_PATCH=2 \
+	-DHAVE_LLVM=0x0305 -DMESA_LLVM_VERSION_PATCH=2 \
 	-D__STDC_CONSTANT_MACROS \
 	-D__STDC_FORMAT_MACROS \
 	-D__STDC_LIMIT_MACROS