Export additional __aeabi_ symbols from arm's libgcc_s

Some programs depend on these symbols, when they are compiled for armv6
or armv7. Closes #1560 (slightly changed due to sorting of the symbols).

PR:		271087
Reported by:	fuz
Submitted by:	jfc@mit.edu
MFC after:	1 week

(cherry picked from commit caab831)

lib/libgcc_s/arm/Symbol.map

@@ -4,8 +4,33 @@
 GCC_3.5 {
 	_Unwind_Complete;
 	_Unwind_VRS_Get;
-	_Unwind_VRS_Set;
 	_Unwind_VRS_Pop;
+	_Unwind_VRS_Set;
+	__aeabi_d2h;
+	__aeabi_d2lz;
+	__aeabi_d2ulz;
+	__aeabi_f2h;
+	__aeabi_f2lz;
+	__aeabi_f2ulz;
+	__aeabi_h2f;
+	__aeabi_idiv;
+	__aeabi_idiv0;
+	__aeabi_l2d;
+	__aeabi_l2f;
+	__aeabi_lasr;
+	__aeabi_lcmp;
+	__aeabi_ldivmod;
+	__aeabi_llsl;
+	__aeabi_llsr;
+	__aeabi_lmul;
+	__aeabi_ui2d;
+	__aeabi_ui2f;
+	__aeabi_uidiv;
+	__aeabi_uidivmod;
+	__aeabi_ul2d;
+	__aeabi_ul2f;
+	__aeabi_ulcmp;
+	__aeabi_uldivmod;
 	__aeabi_unwind_cpp_pr0;
 	__aeabi_unwind_cpp_pr1;
 	__aeabi_unwind_cpp_pr2;