New Port: Eros Q Native

What works:
- LCD: 16-bit RGB565
- all buttons, including scrollwheel
- SD Card
- Battery level and charging/not charging status
- USB
- audio
- sample rate switching
- HP / LO detect, with "safe" fixed LO volume -
   LO volume will only be put to user-defined max volume
   if headphones are not present.
- rtc
- Plugins build, tried a couple and they seem OK
- Bootloader, installable to nand via usbboot

What doesn't work:
- Dual Boot
- power on/off has intermittent, low volume audio click
   (sometimes it's completely silent, sometimes there's
    a click)
- Audio uses 16-bit volume scaling, so clicking/popping
   is pretty bad at lower volumes - need 32 bit volume
   scaling, 24 bit I2S data
- USB HID keys not yet defined
- no jztool support

Unknowns:
- Stereo Switch pins: Direction select, AC_DC
   (probably not even hooked up)
- What is the actual purpose of the Stereo Swtich?
- How does the bluetooth module connect?

"Someday" stuff:
- get LCD working at higher bit depth
- Bluetooth

Change-Id: I70dda8fc092c6e3f4352f2245e4164193f803c33

firmware/SOURCES

@@ -505,6 +505,8 @@ drivers/audio/cs4398.c
 drivers/audio/es9018.c
 #elif defined (HAVE_ES9218)
 drivers/audio/es9218.c
+#elif defined (HAVE_EROS_QN_CODEC)
+drivers/audio/eros_qn_codec.c
 #endif /* defined(HAVE_*) */
 #else /* PLATFORM_HOSTED */
 #if defined(SAMSUNG_YPR0) && defined(HAVE_AS3514)
@@ -1727,6 +1729,15 @@ target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
 target/mips/ingenic_x1000/shanlingq1/spl-shanlingq1.c
 #endif /* SHANLING_Q1 */
 
+#if defined(EROS_QN)
+target/mips/ingenic_x1000/erosqnative/audiohw-erosqnative.c
+target/mips/ingenic_x1000/erosqnative/backlight-erosqnative.c
+target/mips/ingenic_x1000/erosqnative/button-erosqnative.c
+target/mips/ingenic_x1000/erosqnative/lcd-erosqnative.c
+target/mips/ingenic_x1000/erosqnative/power-erosqnative.c
+target/mips/ingenic_x1000/erosqnative/spl-erosqnative.c
+#endif /* EROS_QN */
+
 #if defined(LYRE_PROTO1)
 target/arm/at91sam/lyre_proto1/adc-lyre_proto1.c
 target/arm/at91sam/lyre_proto1/backlight-lyre_proto1.c