Display splash before loading firmware

Removes 3 second delay for booting into Horizon, and mutes the console. Errors unmute.

src/error.c

@@ -30,6 +30,7 @@ void panic() {
}

void error(char *errStr) {
    gfx_con.mute = 0;
    gfx_con_setcol(&gfx_con, RED, 0, 0);
    print("Error: %s", errStr);
    gfx_con_setcol(&gfx_con, DEFAULT_TEXT_COL, 0, 0);

src/firmware.c

@@ -25,13 +25,14 @@

static pk11_offs *pk11Offs = NULL;

void drawSplash() {
int drawSplash() {
    // Draw splashscreen to framebuffer.
    if(fopen("/ReiNX/splash.bin", "rb") != 0) {
        fread((void*)0xC0000000, fsize(), 1);
        fclose();
        usleep(3000000);
        return 1;
    }
    return 0;
}

pk11_offs *pkg11_offsentify(u8 *pkg1) {
@@ -309,7 +310,7 @@ void firmware() {
            i2c_send_byte(I2C_5, 0x3C, MAX77620_REG_ONOFFCNFG1, MAX77620_ONOFFCNFG1_PWR_OFF);
        btn_wait();
    }
    

    if(PMC(APBDEV_PMC_SCRATCH49) != 69 && fopen("/ReiNX.bin", "rb")) {
        fread((void*)PAYLOAD_ADDR, fsize(), 1);
        fclose();
@@ -322,9 +323,14 @@ void firmware() {
    }
    SYSREG(AHB_AHB_SPARE_REG) = (volatile vu32)0xFFFFFF9F;
	PMC(APBDEV_PMC_SCRATCH49) = 0;
    

    if (btn_read() & BTN_VOL_DOWN) {
        print("Booting verbosely\n");
    } else if (drawSplash()) {
        gfx_con.mute = 1;
    }

    print("Welcome to ReiNX %s!\n", VERSION);
    loadFirm();
    drawSplash();
    launch();
}