Update RTEMS OS_IntAttachHandler for the PPC (GSFC #22161)

[skliper]

ATLAS uses the OSAL with RTEMS on the RAD750, and had to use a different RTEMS API to attach interrupts.
 
Need to research this and either:
A: Incorporate the ATLAS code as-is, or
B: try to update the function to use the new code for all architectures
 
The ATLAS code:

rtems_status_code ret_status = ~RTEMS_SUCCESSFUL;    
uint32 status = OS_ERROR;  

#if defined (__PPC__)    
 /*     
 * PowerPC uses new-exception which is an extension of clasic irq api     */ 

#include <rtems/irq-extension.h>    
  const char *info = NULL;    
  ret_status = rtems_interrupt_handler_install(                                                               
               (rtems_vector_number)InterruptNumber,                  
                info,                    
                RTEMS_INTERRUPT_SHARED,                      
               (rtems_interrupt_handler)InterruptHandler,                               (void*)parameter );     
#else    
  rtems_isr_entry old_handler;     

  ret_status = rtems_interrupt_catch(                    
               (rtems_isr_entry)InterruptHandler,                     
               (rtems_vector_number)InterruptNumber,                    
                &old_handler); 
#endif 

[skliper]

Imported from trac issue 48. Created by sstrege on 2015-05-14T18:20:34, last modified: 2019-08-14T14:11:46

[skliper]

#396 makes this no longer applicable, OS_Int calls deprecated