Use internal 8mhz clock for RTC - the RC clock drifts very fast

in support of meshtastic/firmware#584

Author: geeksville

sdkconfig

@@ -302,8 +302,15 @@ CONFIG_MFN56_4X=
 #
 # Object Detection
 #
-CONFIG_LSSH_SPARSE_MN_5=y
-CONFIG_LSSH_WITH_LANDMARK=
+CONFIG_DETECT_WITH_LANDMARK=
+
+#
+# Pose Estimation
+#
+CONFIG_HD_NANO1=y
+CONFIG_HD_LITE1=
+CONFIG_HP_NANO1=y
+CONFIG_HP_LITE1=
 
 #
 # ESP32-specific
@@ -414,10 +421,10 @@ CONFIG_ESP32_TIME_SYSCALL_USE_RTC_FRC1=y
 CONFIG_ESP32_TIME_SYSCALL_USE_RTC=
 CONFIG_ESP32_TIME_SYSCALL_USE_FRC1=
 CONFIG_ESP32_TIME_SYSCALL_USE_NONE=
-CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_RC=y
+CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_RC=
 CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_CRYSTAL=
 CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_OSC=
-CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_8MD256=
+CONFIG_ESP32_RTC_CLOCK_SOURCE_INTERNAL_8MD256=y
 CONFIG_ESP32_RTC_CLK_CAL_CYCLES=1024
 CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY=2000
 CONFIG_ESP32_XTAL_FREQ_40=
@@ -474,11 +481,12 @@ CONFIG_PM_TRACE=
 #
 # Camera configuration
 #
-CONFIG_OV2640_SUPPORT=y
+CONFIG_OV7670_SUPPORT=y
 CONFIG_OV7725_SUPPORT=y
+CONFIG_NT99141_SUPPORT=y
+CONFIG_OV2640_SUPPORT=y
 CONFIG_OV3660_SUPPORT=y
 CONFIG_OV5640_SUPPORT=y
-CONFIG_SCCB_HARDWARE_I2C=y
 CONFIG_SCCB_HARDWARE_I2C_PORT0=
 CONFIG_SCCB_HARDWARE_I2C_PORT1=y
 CONFIG_CAMERA_CORE0=