--android-shlib for 32-bit ARM

Includes better handling of asl_delta in execution stub.

    	modified:   p_lx_elf.cpp
    	modified:   p_lx_elf.h
    	modified:   stub/src/arm.v4t-linux.shlib-init.S
    	modified:   stub/src/arm64-linux.shlib-init.S

src/p_lx_elf.h

@@ -167,6 +167,8 @@ protected:
     unsigned so_slide;
     unsigned char *note_body;  // concatenated contents of PT_NOTEs, if any
     unsigned note_size;  // total size of PT_NOTEs
+    unsigned n_jmp_slot;
+    unsigned plt_off;
     unsigned page_mask;  // AND clears the offset-within-page
 
     Elf32_Dyn    const *dynseg;   // from PT_DYNAMIC