Correct texture storage levels count validation.

src/common/version.h

 #define MAJOR_VERSION 0
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 880
+#define BUILD_REVISION 881
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/libGLESv2/libGLESv2.cpp

@@ -5011,7 +5011,7 @@ void __stdcall glTexStorage2DEXT(GLenum target, GLsizei levels, GLenum internalf
             return error(GL_INVALID_VALUE);
         }
 
-        if (levels > gl::log2(std::max(width, height)) + 1)
+        if (levels != 1 && levels != gl::log2(std::max(width, height)) + 1)
         {
             return error(GL_INVALID_OPERATION);
         }