package/odhcp6c: bump to version f575351cbb3defc0bf52680c9082912a6c264374

Switch to official openwrt site instead of sbyx github fork which is not
up to date anymore. This bump will fix build with musl 1.2.0 thanks to
https://git.openwrt.org/?p=project/odhcp6c.git;a=commit;h=49305e6847efa43e008d0bebdc176e1833120947

Also update indentation of hash file (two spaces)

Fixes:
 - http://autobuild.buildroot.org/results/fcd89dd076887e9b590ffa672decf2c84a6d57f8

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/odhcp6c/Config.in

@@ -5,4 +5,4 @@ config BR2_PACKAGE_ODHCP6C
 	  odhcp6c is a minimal DHCPv6 and RA-client for use in
 	  embedded Linux systems, especially routers.
 
-	  https://github.com/sbyx/odhcp6c
+	  https://git.openwrt.org/project/odhcp6c.git

package/odhcp6c/odhcp6c.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256 6d472320ccfa2e57197596869507f2a4bf9900a502939404bf0c033dceeadf5f odhcp6c-d2e247d8d87ecf8c60fcf0acdad05667bd379521.tar.gz
-sha256 e6d6a009505e345fe949e1310334fcb0747f28dae2856759de102ab66b722cb4 COPYING
+sha256  e715c1408982152306c65f1c3ce7c58fb6f15fa8f9626c266819119239f32418  odhcp6c-f575351cbb3defc0bf52680c9082912a6c264374.tar.gz
+sha256  e6d6a009505e345fe949e1310334fcb0747f28dae2856759de102ab66b722cb4  COPYING

package/odhcp6c/odhcp6c.mk

@@ -4,8 +4,9 @@
 #
 ################################################################################
 
-ODHCP6C_VERSION = d2e247d8d87ecf8c60fcf0acdad05667bd379521
-ODHCP6C_SITE = $(call github,sbyx,odhcp6c,$(ODHCP6C_VERSION))
+ODHCP6C_VERSION = f575351cbb3defc0bf52680c9082912a6c264374
+ODHCP6C_SITE = https://git.openwrt.org/project/odhcp6c.git
+ODHCP6C_SITE_METHOD = git
 ODHCP6C_LICENSE = GPL-2.0
 ODHCP6C_LICENSE_FILES = COPYING