sh: fix uClibc-ng fdpic toolchain compile

toolchain/gcc/patches/6.3.0/fix-dwarf-fdpic.uclibc-ng

@@ -0,0 +1,33 @@
+diff -Nur gcc-6.3.0.orig/libgcc/unwind-dw2-fde-dip.c gcc-6.3.0/libgcc/unwind-dw2-fde-dip.c
+--- gcc-6.3.0.orig/libgcc/unwind-dw2-fde-dip.c	2016-01-04 15:30:50.000000000 +0100
++++ gcc-6.3.0/libgcc/unwind-dw2-fde-dip.c	2017-05-18 00:43:58.000000000 +0200
+@@ -124,7 +124,11 @@
+ {
+   _Unwind_Ptr pc_low;
+   _Unwind_Ptr pc_high;
++#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__ || defined __SH_FDPIC__
++  struct elf32_fdpic_loadaddr load_base;
++#else
+   _Unwind_Ptr load_base;
++#endif
+   const ElfW(Phdr) *p_eh_frame_hdr;
+   const ElfW(Phdr) *p_dynamic;
+   struct frame_hdr_cache_element *link;
+@@ -163,7 +167,7 @@
+   struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
+   const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
+   long n, match;
+-#ifdef __FRV_FDPIC__
++#if defined __FRV_FDPIC__ || defined __BFIN_FDPIC__ || defined __SH_FDPIC__
+   struct elf32_fdpic_loadaddr load_base;
+ #else
+   _Unwind_Ptr load_base;
+@@ -347,7 +351,7 @@
+ 	    break;
+ 	  }
+     }
+-# elif defined __FRV_FDPIC__ && defined __linux__
++# elif (defined __FRV_FDPIC__ || defined __BFIN_FDPIC__) || defined __SH_FDPIC__ && defined __linux__
+   data->dbase = load_base.got_value;
+ # else
+ #  error What is DW_EH_PE_datarel base on this platform?