webp/encode.h: restore WEBP_ENCODER_ABI_VERSION to v1.1.0
this was missed in:
fix ABI breakage introduced by
extern "C" {
#endif
-#define WEBP_ENCODER_ABI_VERSION 0x0210 // MAJOR(8b) + MINOR(8b)
+#define WEBP_ENCODER_ABI_VERSION 0x020f // MAJOR(8b) + MINOR(8b)
// Note: forward declaring enumerations is not allowed in (strict) C and C++,
// the types are left here for reference.
