Remove binary files: src part

Remove code which is not usable without hdcp.bin file

ARM-software/tf-issues#651
It is only needed for HDCP support (a DRM feature for video streaming),
if you don't care about that the rest of the firmware should work
perfectly fine without it. Just change rk3399/plat_sip_calls.c to not
handle the RK_SIP_HDCP* SMCs when this option is set, and then exclude
rk3399/drivers/dp/cdn_dp.c and the blob from rk3399/platform.mk.

plat/rockchip/rk3399/plat_sip_calls.c

@@ -24,9 +24,6 @@
 #define DRAM_SET_PARAM		0x07
 #define DRAM_SET_ODT_PD		0x08
 
-#define RK_SIP_HDCP_CONTROL	0x82000009
-#define RK_SIP_HDCP_KEY_DATA64	0xC200000A
-
 uint32_t ddr_smc_handler(uint64_t arg0, uint64_t arg1,
 			 uint64_t id, uint64_t arg2)
 {
@@ -56,21 +53,9 @@ uintptr_t rockchip_plat_sip_handler(uint32_t smc_fid,
 				    void *handle,
 				    u_register_t flags)
 {
-#ifdef PLAT_RK_DP_HDCP
-	uint64_t x5, x6;
-#endif
-
 	switch (smc_fid) {
 	case RK_SIP_DDR_CFG:
 		SMC_RET1(handle, ddr_smc_handler(x1, x2, x3, x4));
-#ifdef PLAT_RK_DP_HDCP
-	case RK_SIP_HDCP_CONTROL:
-		SMC_RET1(handle, dp_hdcp_ctrl(x1));
-	case RK_SIP_HDCP_KEY_DATA64:
-		x5 = read_ctx_reg(get_gpregs_ctx(handle), CTX_GPREG_X5);
-		x6 = read_ctx_reg(get_gpregs_ctx(handle), CTX_GPREG_X6);
-		SMC_RET1(handle, dp_hdcp_store_key(x1, x2, x3, x4, x5, x6));
-#endif
 	default:
 		ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 		SMC_RET1(handle, SMC_UNK);

plat/rockchip/rk3399/platform.mk

@@ -89,16 +89,6 @@ $(eval $(call add_define_val,RK3399M0FW,\"$(RK3399M0FW)\"))
 RK3399M0PMUFW=${BUILD_M0}/${PLAT_M0}pmu.bin
 $(eval $(call add_define_val,RK3399M0PMUFW,\"$(RK3399M0PMUFW)\"))
 
-ifdef PLAT_RK_DP_HDCP
-BL31_SOURCES	+= ${RK_PLAT_SOC}/drivers/dp/cdn_dp.c
-
-HDCPFW=${RK_PLAT_SOC}/drivers/dp/hdcp.bin
-$(eval $(call add_define_val,HDCPFW,\"$(HDCPFW)\"))
-
-${BUILD_PLAT}/bl31/cdn_dp.o: CCACHE_EXTRAFILES=$(HDCPFW)
-${RK_PLAT_SOC}/drivers/dp/cdn_dp.c: $(HDCPFW)
-endif
-
 # CCACHE_EXTRAFILES is needed because ccache doesn't handle .incbin
 export CCACHE_EXTRAFILES
 ${BUILD_PLAT}/bl31/pmu_fw.o: CCACHE_EXTRAFILES=$(RK3399M0FW):$(RK3399M0PMUFW)