move rodata segment of libphy.a to dram

1. rodata segment of libphy.a(about 1200B) can be accessed by ISRs, so put it into DRAM

Author: wmy-espressif

components/esp32/ld/esp32.common.ld

@@ -115,6 +115,7 @@ SECTIONS
     *(.jcr)
     *(.dram1 .dram1.*)
     *libesp32.a:panic.o(.rodata .rodata.*)
+    *libphy.a:(.rodata .rodata.*)
     *libsoc.a:rtc_clk.o(.rodata .rodata.*)
     *libapp_trace.a:(.rodata .rodata.*)
     *libgcov.a:(.rodata .rodata.*)