Merge changes from topic "bionic_max_pgsize" into main

* changes:
  bionic: libc: WriteProtected use max_page_size()
  bionic: Introduce max_page_size()
diff --git a/libc/include/bits/elf_common.h b/libc/include/bits/elf_common.h
index b3c57a2..ac89dd6 100644
--- a/libc/include/bits/elf_common.h
+++ b/libc/include/bits/elf_common.h
@@ -1248,6 +1248,7 @@
 
 /*
  * RISC-V relocation types.
+ * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#relocations
  */
 
 /* Relocation types used by the dynamic linker. */
@@ -1304,6 +1305,9 @@
 #define	R_RISCV_SET32		56
 #define	R_RISCV_32_PCREL	57
 #define	R_RISCV_IRELATIVE	58
+#define	R_RISCV_PLT32		59
+#define	R_RISCV_SET_ULEB128	60
+#define	R_RISCV_SUB_ULEB128	61
 
 #define	R_SPARC_NONE		0
 #define	R_SPARC_8		1