efi: move block io driver to driver/block

so it can be reused on any ARCH

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/efi/efi/Makefile

@@ -1,2 +1,5 @@
-obj-y += efi.o clocksource.o efi-block-io.o efi-device.o efi-image.o
+obj-y += clocksource.o
+obj-y += efi.o
+obj-y += efi-device.o
+obj-y += efi-image.o
 bbenv-y += env-efi

drivers/Makefile

@@ -1,4 +1,5 @@
 obj-y	+= base/
+obj-y	+= block/
 obj-$(CONFIG_ARM_AMBA) += amba/
 obj-y	+= net/
 obj-y	+= serial/

drivers/block/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_EFI_BOOTUP) += efi-block-io.o