esp32: merge bt/wifi coexist code

1. Modify makefile to add coexist lib
2. Update bt/wifi coexist lib

components/esp32/component.mk

@@ -10,7 +10,7 @@
 
 COMPONENT_SRCDIRS := . hwcrypto
 
-LIBS := core net80211 phy rtc pp wpa smartconfig
+LIBS := core net80211 phy rtc pp wpa smartconfig coexist
 
 LINKER_SCRIPTS += -T esp32_out.ld -T esp32.common.ld -T esp32.rom.ld -T esp32.peripherals.ld
 

components/esp32/lib

@@ -1 +1 @@
-Subproject commit b3090d885413fb78c86e7b88116cdb5c8c5e9e68
+Subproject commit a1ab74c2a6122693ee87f08306364fc7a016ced7