faad2: update to 2.9.1

It seems upstream abandoned sourceforge.

Add license information.

Fix CVE tag. It seems the mass CVE patch placed many wrong CVEs.

Add PKG_BUILD_PARALLEL for faster compilation.

Do not build patented functionality when BUILD_PATENTED is missing.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/faad2/patches/030-sbr-ps-dec.patch

@@ -0,0 +1,20 @@
+--- a/libfaad/common.h
++++ b/libfaad/common.h
+@@ -120,8 +120,7 @@ extern "C" {
+   #undef DRM_PS
+   #undef ALLOW_SMALL_FRAMELENGTH
+   #undef ERROR_RESILIENCE
+-#endif
+-
++#else
+ #define SBR_DEC
+ //#define SBR_LOW_POWER
+ #define PS_DEC
+@@ -129,6 +128,7 @@ extern "C" {
+ #ifdef SBR_LOW_POWER
+ #undef PS_DEC
+ #endif
++#endif
+ 
+ /* FIXED POINT: No MAIN decoding */
+ #ifdef FIXED_POINT