- Remove ogg params from speex configure as it doesn't know about them.

- Remove --enable-sse=no from both speex and speexdsp. The configure
  scripts do actually not add items to our CFLAGS like previously
  assumed.

- When --disable-float-api is used VBR needs to be disabled as well, as
  VBR has not been implemented with fixed-point math in speex (yet). So
  add --disable-vbr when --disable-float-api is used.

- In speexdsp 1.2rc2 optimizations for NEON were added. Unfortunately
  the ASM does not work for 64bit ARM. So force NEON optimizations off
  when compiling for AARCH64.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>