Homogenize configuration option name.

Rename '--enable-aom-highbitdepth' to '--enable-highbitdepth'

Change-Id: I1de13c3508c30c552532993419d8ace326142ab6
diff --git a/av1/av1_common.mk b/av1/av1_common.mk
index 0ed4e35..da4866d 100644
--- a/av1/av1_common.mk
+++ b/av1/av1_common.mk
@@ -73,7 +73,7 @@
 AV1_COMMON_SRCS-yes += common/av1_inv_txfm2d.c
 AV1_COMMON_SRCS-yes += common/av1_inv_txfm2d_cfg.h
 AV1_COMMON_SRCS-$(HAVE_SSSE3) += common/x86/av1_convolve_ssse3.c
-ifeq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
+ifeq ($(CONFIG_HIGHBITDEPTH),yes)
 AV1_COMMON_SRCS-$(HAVE_SSE4_1) += common/x86/av1_highbd_convolve_sse4.c
 endif
 AV1_COMMON_SRCS-yes += common/convolve.c
@@ -135,7 +135,7 @@
 AV1_COMMON_SRCS-yes += common/generic_code.h
 endif
 
-ifneq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
+ifneq ($(CONFIG_HIGHBITDEPTH),yes)
 AV1_COMMON_SRCS-$(HAVE_DSPR2)  += common/mips/dspr2/av1_itrans4_dspr2.c
 AV1_COMMON_SRCS-$(HAVE_DSPR2)  += common/mips/dspr2/av1_itrans8_dspr2.c
 AV1_COMMON_SRCS-$(HAVE_DSPR2)  += common/mips/dspr2/av1_itrans16_dspr2.c
@@ -154,13 +154,13 @@
 AV1_COMMON_SRCS-$(HAVE_SSE4_1) += common/x86/av1_fwd_txfm1d_sse4.c
 AV1_COMMON_SRCS-$(HAVE_SSE4_1) += common/x86/av1_fwd_txfm2d_sse4.c
 endif
-ifeq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
+ifeq ($(CONFIG_HIGHBITDEPTH),yes)
 AV1_COMMON_SRCS-$(HAVE_SSE4_1) += common/x86/highbd_txfm_utility_sse4.h
 AV1_COMMON_SRCS-$(HAVE_SSE4_1) += common/x86/highbd_inv_txfm_sse4.c
 AV1_COMMON_SRCS-$(HAVE_AVX2) += common/x86/highbd_inv_txfm_avx2.c
 endif
 
-ifneq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
+ifneq ($(CONFIG_HIGHBITDEPTH),yes)
 AV1_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/iht4x4_add_neon.c
 AV1_COMMON_SRCS-$(HAVE_NEON) += common/arm/neon/iht8x8_add_neon.c
 endif
@@ -171,7 +171,7 @@
 
 ifneq ($(findstring yes,$(CONFIG_GLOBAL_MOTION) $(CONFIG_WARPED_MOTION)),)
 AV1_COMMON_SRCS-$(HAVE_SSE2) += common/x86/warp_plane_sse2.c
-ifeq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
+ifeq ($(CONFIG_HIGHBITDEPTH),yes)
 AV1_COMMON_SRCS-$(HAVE_SSSE3) += common/x86/highbd_warp_plane_ssse3.c
 endif
 endif