treewide: Update ARM NEON/VFP detection

With openwrt/openwrt@8dcc108760, the ARM
FPU compiler options are no longer part of CONFIG_TARGET_OPTIMIZATION.

This updates various packages that look for NEON/VFP support to search
CONFIG_CPU_TYPE instead.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
(cherry picked from commit 2d99ee3004)
[adapted patch for pulseaudio using autotools build]

multimedia/ffmpeg/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ffmpeg
 PKG_VERSION:=3.4.7
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://ffmpeg.org/releases/
@@ -464,12 +464,12 @@ endif
 ifneq ($(findstring arm,$(CONFIG_ARCH)),)
 	FFMPEG_CONFIGURE+= --enable-lto
 
-	ifneq ($(findstring vfp,$(CONFIG_TARGET_OPTIMIZATION)),)
+	ifneq ($(findstring vfp,$(CONFIG_CPU_TYPE)),)
 		FFMPEG_CONFIGURE+= --enable-vfp
 	else
 		FFMPEG_CONFIGURE+= --disable-vfp
 	endif
-	ifneq ($(findstring neon,$(CONFIG_TARGET_OPTIMIZATION)),)
+	ifneq ($(findstring neon,$(CONFIG_CPU_TYPE)),)
 		FFMPEG_CONFIGURE+= \
 			--enable-neon \
 			--enable-vfp