mtd: nand: Move AMD/Spansion specific init/detection logic in nand_amd.c

Upstream linux commit 229204da53b31d.

Move AMD/Spansion specific initialization/detection logic into
nand_amd.c. This is part of the "separate vendor specific code from
core" cleanup process.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 8ef30b4..9c2ced9 100644
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -14,7 +14,8 @@
 obj-$(CONFIG_SPL_NAND_SIMPLE) += nand_spl_simple.o
 obj-$(CONFIG_SPL_NAND_LOAD) += nand_spl_load.o
 obj-$(CONFIG_SPL_NAND_ECC) += nand_ecc.o
-obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_hynix.o nand_micron.o nand_samsung.o nand_toshiba.o
+obj-$(CONFIG_SPL_NAND_BASE) += nand_base.o nand_amd.o nand_hynix.o nand_micron.o \
+				nand_samsung.o nand_toshiba.o
 obj-$(CONFIG_SPL_NAND_IDENT) += nand_ids.o nand_timings.o
 obj-$(CONFIG_TPL_NAND_INIT) += nand.o
 ifeq ($(CONFIG_SPL_ENV_SUPPORT),y)
@@ -31,6 +32,7 @@
 obj-y += nand_util.o
 obj-y += nand_ecc.o
 obj-y += nand_base.o
+obj-y += nand_amd.o
 obj-y += nand_hynix.o
 obj-y += nand_micron.o
 obj-y += nand_samsung.o