package/sdl2: bump version to 2.30.12

Release notes:
https://github.com/libsdl-org/SDL/releases/tag/release-2.30.12

Signed-off-by: Michael Fischer <mf@go-sys.de>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/sdl2/sdl2.hash

@@ -1,4 +1,4 @@
-# Locally calculated after checking http://www.libsdl.org/release/SDL2-2.30.11.tar.gz.sig
-sha256  8b8d4aef2038533da814965220f88f77d60dfa0f32685f80ead65e501337da7f  SDL2-2.30.11.tar.gz
+# Locally calculated after checking http://www.libsdl.org/release/SDL2-2.30.12.tar.gz.sig
+sha256  ac356ea55e8b9dd0b2d1fa27da40ef7e238267ccf9324704850d5d47375b48ea  SDL2-2.30.12.tar.gz
 # Locally calculated
 sha256  97f35b302b361680ec1e891e95d2d52097bb95abff361434916d99dc1305f127  LICENSE.txt

package/sdl2/sdl2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SDL2_VERSION = 2.30.11
+SDL2_VERSION = 2.30.12
 SDL2_SOURCE = SDL2-$(SDL2_VERSION).tar.gz
 SDL2_SITE = http://www.libsdl.org/release
 SDL2_LICENSE = Zlib