sdpd-request: Fix build errors due to unaligned memory access
sdpd-request: Fix build errors due to unaligned memory access

This fix following compilation errors on ARM.

  CC     src/bluetoothd-sdpd-request.o
src/sdpd-request.c: In function ‘extract_des’:
src/sdpd-request.c:186:17: error: cast increases required alignment of
	target type [-Werror=cast-align]
src/sdpd-request.c:186:17: error: cast increases required alignment of
	target type [-Werror=cast-align]
src/sdpd-request.c:210:17: error: cast increases required alignment of
	target type [-Werror=cast-align]
src/sdpd-request.c:210:17: error: cast increases required alignment of
	target type [-Werror=cast-align]
cc1: all warnings being treated as errors
make[1]: *** [src/bluetoothd-sdpd-request.o] Error 1

mapfau/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,ComputeCycles/bluez,pkarasev3/bluez,pkarasev3/bluez,ComputeCycles/bluez,pkarasev3/bluez,ComputeCycles/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,mapfau/bluez,silent-snowman/bluez,silent-snowman/bluez,silent-snowman/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,ComputeCycles/bluez