configure: check for a sufficiently recent enough AMF version

Due to the recent addition of Vulkan support to AMF, we require more
recent headers that include the new structures, which have been
available since AMF 1.4.9 released in September 2018.

Fixes Ticket #8125

configure

@@ -6617,7 +6617,7 @@ EOF
 
 enabled amf &&
     check_cpp_condition amf "AMF/core/Version.h" \
-        "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
+        "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400090000"
 
 # Funny iconv installations are not unusual, so check it after all flags have been set
 if enabled libc_iconv; then