build: Add submodule update

Automatically add submodule update if necessary

Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>

Author: c3d

Makefile

@@ -268,6 +268,8 @@ DEFINES_android=ANDROID					\
 
 TOP ?= ./
 MIQ ?= $(TOP)recorder/make-it-quick/
+$(MIQ)rules.mk:
+	@git submodule update --init --recursive
 
 # A little gmake trick to avoid mixing output from multiple rules at -j
 GROUP_TARGETS ?= -Otarget