[Buildroot] [git commit branch/2020.08.x] package/rauc: prevent occurring the error when directory exists

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=6d18c7bd1908a92ca7c81fde6e2eea6751cdd0a2
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2020.08.x

Add -p argument that ignore that specified directory already exists.

Fixes:
 mkdir: cannot create directory ‘/home/bartekk/buildroot-2020.11-rc1/output/target/usr/lib/systemd/system/rauc.service.d’: File exists

Signed-off-by: Bartosz Bilas <b.bilas at grinn-global.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit fefdd0511e99676aceb09403063f336e631d5067)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/rauc/rauc.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/rauc/rauc.mk b/package/rauc/rauc.mk
index 1915c783aa..61c50ab316 100644
--- a/package/rauc/rauc.mk
+++ b/package/rauc/rauc.mk
@@ -31,7 +31,7 @@ RAUC_DEPENDENCIES += systemd
 endif
 
 define RAUC_INSTALL_INIT_SYSTEMD
-	mkdir $(TARGET_DIR)/usr/lib/systemd/system/rauc.service.d
+	mkdir -p $(TARGET_DIR)/usr/lib/systemd/system/rauc.service.d
 	printf '[Install]\nWantedBy=multi-user.target\n' \
 		>$(TARGET_DIR)/usr/lib/systemd/system/rauc.service.d/buildroot-enable.conf
 endef