uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/tools/system/foremost/makefile.patch

@@ -0,0 +1,23 @@
+--- a/Makefile	2015-04-21 00:40:46.949266581 +0200
++++ b/Makefile	2015-04-21 00:41:38.637165883 +0200
+@@ -24,9 +24,9 @@
+ RAW_FLAGS += -DVERSION=\"$(VERSION)\"
+ 
+ # Where we get installed
+-BIN = /usr/local/bin
+-MAN = /usr/share/man/man8
+-CONF= /usr/local/etc
++BIN = $(PREFIX)/bin
++MAN = $(PREFIX)/share/man/man8
++CONF= $(PREFIX)/etc
+ # Setup for compiling and cross-compiling for Windows
+ # The CR_ prefix refers to cross compiling from OSX to Windows
+ CR_CC = $(CR_BASE)/gcc
+@@ -120,7 +120,6 @@
+ install: goals
+ 	install -m 755 $(NAME) $(BIN)
+ 	install -m 444 $(MAN_PAGES) $(MAN)
+-	install -m 444 foremost.conf $(CONF)
+ macinstall: BIN = /usr/local/bin/
+ macinstall: MAN = /usr/share/man/man1/
+ macinstall: CONF = /usr/local/etc/