columbia: Build bl31.bin for the 8mm as well as the 8mq

Change-Id: I4eaa58ed8d44ba61f92f5dfe3b83fa2174c5f1fb
diff --git a/debian/rules b/debian/rules
index 2a68814..c82bdce 100755
--- a/debian/rules
+++ b/debian/rules
@@ -15,8 +15,12 @@
 
 override_dh_auto_build:
 	make LDFLAGS= CFLAGS= CROSS_COMPILE=aarch64-linux-gnu- PLAT=imx8mq bl31
+	make LDFLAGS= CFLAGS= CROSS_COMPILE=aarch64-linux-gnu- PLAT=imx8mm bl31
 
 override_dh_auto_install:
 	dh_auto_install
 	install -d $(DESTDIR)/usr/share/imx-atf
-	install -m 644 -o 0 -g 0 build/imx8mq/release/bl31.bin $(DESTDIR)/usr/share/imx-atf/bl31.bin
+	install -d $(DESTDIR)/usr/share/imx-atf/imx8mq
+	install -d $(DESTDIR)/usr/share/imx-atf/imx8mm
+	install -m 644 -o 0 -g 0 build/imx8mq/release/bl31.bin $(DESTDIR)/usr/share/imx-atf/imx8mq/bl31.bin
+	install -m 644 -o 0 -g 0 build/imx8mm/release/bl31.bin $(DESTDIR)/usr/share/imx-atf/imx8mm/bl31.bin