Add libpanfrost_shared to Android build

1. Add missing directory to ./Android.mk
2. Fix ./src/panfrost/Android.shared.mk

Signed-off-by: Roman Stratiienko <roman.stratiienko@globallogic.com>
Reviewed-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Qiang Yu <yuq825@gmail.com>

Android.mk

@@ -115,7 +115,8 @@ SUBDIRS := \
 	src/broadcom \
 	src/intel \
 	src/mesa/drivers/dri \
-	src/vulkan
+	src/vulkan \
+	src/panfrost \
 
 INC_DIRS := $(call all-named-subdir-makefiles,$(SUBDIRS))
 INC_DIRS += $(call all-named-subdir-makefiles,src/gallium)