[packages/opencv] Update BR (maybe bogus)

[glen]

commit 57f8064794be7bce50df88e27ae4741195ff77fa
Author: Elan Ruusamäe <glen at pld-linux.org>
Date:   Sun Mar 7 13:48:58 2021 +0200

    Update BR (maybe bogus)
    
    AUTO: /usr/include/GL/glext.h:56:10: fatal error: KHR/khrplatform.h: No such file or directory

 opencv.spec | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/opencv.spec b/opencv.spec
index b52909d..32261fc 100644
--- a/opencv.spec
+++ b/opencv.spec
@@ -108,6 +108,7 @@ Patch2:		pkgconfig-paths.patch
 URL:		http://www.opencv.org/
 %{?with_pvapi:BuildRequires:	AVT_GigE_SDK-devel}
 %{?with_opencl:BuildRequires:	OpenCL-devel}
+BuildRequires:	Mesa-khrplatform-devel
 BuildRequires:	OpenEXR-devel
 %{?with_opengl:BuildRequires:	OpenGL-GLU-devel}
 %{?with_opengl:BuildRequires:	OpenGL-devel}
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/packages/opencv.git/commitdiff/57f8064794be7bce50df88e27ae4741195ff77fa