[PATCH] meson: fix SDL2_image detection

["Volker Rümelin" <vr_qemu@t-online.de>]

Configure used to probe for SDL2_image in sdl_image_probe (). Meson
should do the same.

This fixes the following error on my system:

Run-time dependency sdl2 found: YES 2.0.8
Found CMake: /usr/bin/cmake (3.17.0)
Run-time dependency sdl-image found: NO (tried pkgconfig and cmake)

../qemu-master/meson.build:256:2: ERROR: Dependency "sdl-image" not
found, tried pkgconfig and cmake

A full log can be found at /home/ruemelin/rpmbuild/BUILD
/qemu-5.1.50-build/meson-logs/meson-log.txt

ERROR: meson setup failed

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 74f8ea0c2e..8204878860 100644
--- a/meson.build
+++ b/meson.build
@@ -248,7 +248,7 @@ if sdl.found()
   # work around 2.0.8 bug
   sdl = declare_dependency(compile_args: '-Wno-undef',
                            dependencies: sdl)
-  sdl_image = dependency('sdl-image', required: get_option('sdl_image'),
+  sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
                          static: enable_static)
 else
   if get_option('sdl_image').enabled()
-- 
2.26.2