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/filesystems/bcache-tools/fix-static.patch

@@ -0,0 +1,22 @@
+diff --git a/bcache.c b/bcache.c
+index 8f37445..79806d8 100644
+--- a/bcache.c
++++ b/bcache.c
+@@ -26,7 +26,7 @@
+  * x^7 + x^4 + x + 1
+ */
+ 
+-static const uint64_t crc_table[256] = {
++const uint64_t crc_table[256] = {
+ 	0x0000000000000000ULL, 0x42F0E1EBA9EA3693ULL, 0x85E1C3D753D46D26ULL,
+ 	0xC711223CFA3E5BB5ULL, 0x493366450E42ECDFULL, 0x0BC387AEA7A8DA4CULL,
+ 	0xCCD2A5925D9681F9ULL, 0x8E224479F47CB76AULL, 0x9266CC8A1C85D9BEULL,
+@@ -115,7 +115,7 @@ static const uint64_t crc_table[256] = {
+ 	0x9AFCE626CE85B507ULL
+ };
+ 
+-inline uint64_t crc64(const void *_data, size_t len)
++uint64_t crc64(const void *_data, size_t len)
+ {
+ 	uint64_t crc = 0xFFFFFFFFFFFFFFFFULL;
+ 	const unsigned char *data = _data;