Rockchip: rename output plugin name to libv4l-encplugin.so

Plugin has to be dynamically opened in chromium sandbox.
The name needs to be hard-coded in sandbox and libv4l.
To avoid changing both places for every new platform,
using the same name for encoder plugin would be better.

BUG=chromium:405861
TEST=test on pinky and make sure plugin is called successfully.

Change-Id: Ib76afdf8384db6a0f3cdd8734cdcc81b6be14e90
Reviewed-on: https://chromium-review.googlesource.com/240128


Reviewed-by: Wu-cheng Li <wuchengli@chromium.org>
Commit-Queue: Heng-ruey Hsu <henryhsu@chromium.org>
Tested-by: Heng-ruey Hsu <henryhsu@chromium.org>

libv4l-rockchip/Makefile.am

@@ -3,10 +3,10 @@
 # found in the LICENSE file.
 
 if WITH_V4L_PLUGINS
-libv4l2plugin_LTLIBRARIES = libv4l-encplugin-rockchip.la
+libv4l2plugin_LTLIBRARIES = libv4l-encplugin.la
 endif
 
-libv4l_encplugin_rockchip_la_SOURCES = \
+libv4l_encplugin_la_SOURCES = \
 	libv4l-encplugin-rockchip.c \
 	libvpu/rk_vepu.c \
 	libvpu/rk_vepu_debug.c \
@@ -24,6 +24,6 @@ libv4l_encplugin_rockchip_la_SOURCES = \
 	libvpu/vp8_enc/vp8putbits.c \
 	libvpu/vp8_enc/vp8ratecontrol.c \
 	libvpu/vp8_enc/vpu_mem.c
-libv4l_encplugin_rockchip_la_CPPFLAGS = $(CFLAG_VISIBILITY)
-libv4l_encplugin_rockchip_la_LDFLAGS = -avoid-version -module -shared -export-dynamic
-libv4l_encplugin_rockchip_la_LIBADD = -lpthread
+libv4l_encplugin_la_CPPFLAGS = $(CFLAG_VISIBILITY)
+libv4l_encplugin_la_LDFLAGS = -avoid-version -module -shared -export-dynamic
+libv4l_encplugin_la_LIBADD = -lpthread