cramfs: fix installation

The installation procedure of cramfs was broken when
$(HOST_DIR)/usr/bin didn't exist (i.e, cramfsck was installed as
$(HOST_DIR)/usr/bin directly). Use install -D with a proper
destination argument to make it work.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/cramfs/cramfs.mk

@@ -16,8 +16,8 @@ define CRAMFS_BUILD_CMDS
 endef
 
 define CRAMFS_INSTALL_TARGET_CMDS
- install -m 755 $(@D)/mkcramfs $(TARGET_DIR)/usr/bin
- install -m 755 $(@D)/cramfsck $(TARGET_DIR)/usr/bin
+ install -D -m 755 $(@D)/mkcramfs $(TARGET_DIR)/usr/bin/mkcramfs
+ install -D -m 755 $(@D)/cramfsck $(TARGET_DIR)/usr/bin/cramfsck
 endef
 
 define HOST_CRAMFS_BUILD_CMDS
@@ -25,8 +25,8 @@ define HOST_CRAMFS_BUILD_CMDS
 endef
 
 define HOST_CRAMFS_INSTALL_CMDS
- install -m 755 $(@D)/mkcramfs $(HOST_DIR)/usr/bin
- install -m 755 $(@D)/cramfsck $(HOST_DIR)/usr/bin
+ install -D -m 755 $(@D)/mkcramfs $(HOST_DIR)/usr/bin/mkcramfs
+ install -D -m 755 $(@D)/cramfsck $(HOST_DIR)/usr/bin/cramfsck
 endef
 
 $(eval $(call GENTARGETS,package,cramfs))